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The Public Land Survey System GIS Framework:


The Public Land Survey System GIS Framework: How it applies to Surveyors, Assessors, Recorders and the general public Lorraine Wright, IDEM and IGIC Geodetic ... – PowerPoint PPT presentation

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Title: The Public Land Survey System GIS Framework:

The Public Land Survey System GIS Framework
  • How it applies to Surveyors, Assessors, Recorders
    and the general public

Lorraine Wright, IDEM and IGIC Geodetic Workgroup
Co-Chair Gary Kent, The Schneider Corporation
IGIC GIS Conference - March 13, 2007
The Public Land Survey System (PLSS) Legal or
GIS Framework
  • Legal PLSS
  • Based on law and the original PLSS
  • A PLSS corner location is represented by a
    monument or marker in the ground
  • Laws changed over time and so did the boundaries
  • Boundaries, deeds, and parcel descriptions are
    based on PLSS corner locations
  • Only Licensed Surveyors can define Legal
    coordinates for the PLSS corners

PLSS Framework Legal or GIS
  • GIS PLSS Framework
  • Few Legal coordinates exist
  • What is needed to get Legal coordinates?
  • Work with the surveying community
  • Work with the County Surveyor to develop a plan
    to get Legal coordinates when the corners are

PLSS Framework Legal or GIS
  • GIS PLSS Framework
  • Create a way to identify all PLSS corners
    state-wide graphically
  • Tie Card Pilot Project
  • Grid points represent approximate corner
  • Points cannot be used for legal purposes
  • County Surveyor public records for three counties
    were scanned and linked to Grid points

Web Based - Tie Card Project
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PLSS Framework Legal or GIS
  • GIS PLSS Framework
  • The implementation of County legal requirements
    can affect the creation and accuracy of a GIS
    PLSS Framework by
  • Surveyors
  • Assessors
  • Recorders
  • Resulting implementation of requirements can then
    affect the Property Owner

Gary R. Kent Director, Integrated Services The
Schneider Corporation
  • What you need to know about surveying and the
    Legal PLSS

The Public Land Survey System GIS Framework
  • Overview of some of the Assessor and Recorder
  • Overview and demonstration of the Tie Card Project

PLSS Framework Legal or GIS
  • GIS PLSS Framework
  • The implementation of County legal requirements
    can affect the creation and accuracy of a GIS
    PLSS Framework by
  • Surveyors
  • Assessors
  • Recorders
  • Resulting implementation of requirements can then
    affect the Property Owner

County Assessor
  • Countywide equalization
  • Select and maintain a county wide computer system
  • Certify gross assessments
  • Discover omitted property
  • Requirements by Law, IC 36-2-15

  • Calculates the assessed value of all real
    property in each taxing district.
  • Calculates the total assessed value of each
    taxing district.
  • Listed on Hendricks County Assessor website

  • Records
  • Deeds for real estate
  • Mortgages on real estate
  • Affidavit recording in miscellaneous records
    record as prima facie evidence
  •      An affidavit that         (1) concerns the
    birth, marriage, death, name, residence,
    identity, or relationship of any of the parties
    named in an instrument affecting real property
  • Required by Law, IC 36-2-11

Environmental Restrictive Covenant

  • Miscellaneous Records - Are these files searched
    when properties are sold or when title searches
    are done?
  • Are all Environmental Notices/Environmental
    Restrictive Covents and deed restrictions
    recorded in the County Recorders office?
  • How does a property owner know if there are
    Environmental Notices/Environmental Restrictive
    Covenants, deed restrictions, or liens associated
    with a property of interest?
  • How does the prospective property owner know all
    the information they need before considering a
    property purchase?

What you need to know
  • Cadastral (parcel) GIS layers should be tied to
    surveyed PLSS section corners (surveyed by
    licensed surveyors)
  • When the parcel boundaries are tied to PLSS
    section corners the parcel boundaries and lot
    lines may not fit together nicely (that is
  • Parcel measurements from a Cadastral GIS map
    (parcel layer) should not be used for a legal
    boundary or property line interpretations

What you need to Know (cont.)
  • Need mechanism for cross referencing all data
    sources by geography (GIS)
  • Need Legal PLSS Corner coordinates so we are all
    working from the same framework
  • 2005 Aerial Orthophotography - based on limited
    number of Legal PLSS corners
  • Deeds define geography measured from Legal PLSS
  • Parcels are defined by deeds and should relate
    to Legal PLSS corners
  • Addresses relate to parcels

What you need to know (cont)
  • The Surveyor, Assessor and the Recorder are
    dealing with requirements that are based on the
    fundamental Public Land Survey System (PLSS)
  • Counties need to develop a plan so that when
    section corners are perpetuated the Surveyor will
    be able to collect a Legal coordinate at the same
    time. This will require an additional cost, but
    if the coordinate is collected at the same time
    the corner is perpetuated, it will actually save
  • County Offices need to work together to develop
    a plan so that their GIS system can be based on
    the Legal coordinates

What you need to know (cont)
  • Tax and property evaluations relate to parcels
    and structures on the parcels
  • Property restrictions and Institutional Controls
  • May apply to the entire parcel or a subset of a
    parcel and that is defined by geography
    (measured from Legal PLSS corner)
  • Need the Legal PLSS framework so all data can
    be related across
  • Local
  • County
  • State
  • Federal
  • Private groups

IGIC Geodetic Workgroup Goals
  • Develop a Geodetic GIS Framework Layer based on
    Surveying information
  • Wanted coordinates state-wide
  • Found most Geodetic coordinates are housed at the
    National Geodetic Survey (NGS)
  • Develop a GIS PLSS Framework based on surveying
    information (Legal coordinates)
  • Legal coordinates were not available so we set
    out to develop a product that would be beneficial
    to citizens, and both the Surveying and GIS

IGIC Geodetic Workgroup worked with Surveying
  • Participants
  • Indiana Geographic Information Council (IGIC
    members federal, state, county, local, private)
  • Indiana Society of Professional Land Surveyors
  • Office of the Indiana State Geodetic Advisor
  • Indiana County Surveyors Association
  • Private Companies
  • Indiana Geological Survey

Planning for Legal PLSS Coordinates
  • Draft document Discussion Paper for Developing
    a Strategy for Collecting Surveyed (Legal)
    Coordinates for the PLSS corners, state-wide -
    February 8, 2006
  • Posted on IGIC website/Committees/
  • Geodetic Workgroup/ Meeting Minutes February 8,

Specifications for Legal PLSS Coordinates
  • There are no State mandated accuracy requirements
    for collecting (legal) coordinates for
    Perpetuated Corners
  • A standardized minimum accuracy requirement would
    be needed for collecting coordinates for
    Perpetuated Corners, if a state-wide initiative
    moves forward. This would assure a type of
    quality control for the Legal coordinates

Tie Card Pilot Project GIS Framework Layer
  • Process for combing County Tie Cards into a
    statewide system (voluntary participation)
  • A Tie Card is a scanned image of a Countys
    Public Land Survey System Corner Description (how
    to find the marker or monument)

1. Develop a Statewide File Naming Convention
  • Surveyors might describe a Public Land Survey
    Section corner as the NE corner, NW 1/4, SE1/4,
    Section 03,T23N, R06W
  • Different Counties have different corner naming
    conventions for the corners
  • Needed a way to link different data together

1. Develop a Statewide File Naming Convention
  • Statewide naming convention
  • IN02_T23NR06E03_08
  • Computer File Name will include (example)
  • State Name and Principal Meridian IN02
  • Township number - T23
  • Township direction N
  • Range number R06
  • Range direction E
  • Section 03
  • Grid Number 08 (Grid numbering system begins
    with 00 in upper left hand of section and ends in
    80, bottom right corner)

2. Develop a GRID Point GIS Layer (cont)
  • The Grid Point GIS layer (developed for the
    project by Brian Wood) was computer generated
    using the GIS section boundary layer (developed
    by IGS)
  • Each point is named with the state-wide naming

Bartholomew Co. IN02_T9NR5E (sections
1-36) Computer generated Grid Points in
Section 36
Grid Points for a section Bartholomew Co.
IN02_T9NR5E36 Sections are 1 mile by 1 mile
Grid Points showing approximate locations
of Original 8 PLSS Corners and Center
3. Develop the Renaming Software
  • Tie Card Renaming Software (created by Brian
    Wood, Paul I. Cripe)
  • Created to aid in viewing the scanned Tie Cards,
    while renaming the Card with the state-wide
    naming convention
  • Creates a database in the background with the
    entry of key elements from the scanned Tie Card

Tie Card Renaming Software (created by Brian
Wood, Paul I. Cripe)
Lorraine Wright, 3/13/07
4. Create a Geographic Information System
(GIS) Tie Card Layer
  • Link the Grid Point layer to the database
    (created after using the renaming software)

5. Bartholomew County - Click on Grid Point and
the Tie Card pops up
  • Section 20. T9NR5E, Second Principal Meridian
    Grid Points, Bartholomew Co.

6. Scanned Tie Card pops up when you click on
the point
7. Create a website to provide easy access to
Tie Card Project IGS is hosting the Tie Card
8. Disclaimer added to inform the public of use
Metadata file available for the Tie Card Layer
also includes use restrictions
9. Tools added to make it easy to search
  • Zoom to County, location or area
  • Enter the Township, Range and Section
  • Use the identify tool to click on the Corner of
  • The Tie Card pops up
  • Print the document

Tie Card Project on the Web
  • The IGS website contains many state-wide GIS
  • Tie Card Project is create by the user by turning
    on a minimum 4 GIS layers
  • Landsurvey - Sections
  • Landsurvey - Township
  • Surveyor - Tie Cards
  • Aerial Photos 2005

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Scroll to the bottom and click on the map
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Live Demo
  • The Tie Card Pilot Project
  • Three County Tie Card Layers are complete and in
  • 23 Counties are interested in or are currently
  • Looking at ways to link to County Tie Card
    information that is already online
  • The project has no financial support
  • The project is a result of public and private
    volunteers working toward a common and beneficial
    goal for the State of Indiana
  • Need staff and financial support to complete the

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Conclusions (cont)
  • Legal coordinates for PLSS corners
  • All levels of government and the private sector
    need to work together to develop a plan to
    collect Legal coordinates for all the PLSS
  • This is needed so that all other GIS information
    can be linked together using the Legal PLSS
    corner coordinates benefiting the Surveying
    community and citizens
  • If we dont begin planning, we are just
    prolonging what will eventually become a necessity

  • Local, County, State, and Federal Cooperation
  • County Surveyors, Assessors and Recorders can
    begin planning or continue to plan on ways to
    link information geographically while meeting
    their legal requirements
  • Local, County, State, and Federal agencies need
    to work together to help achieve common goals for
    their own organizations while at the same time
    working toward common goals that benefit Indiana
  • All levels of government need to share their data
    because we are all dealing with the same

Geodetic Control Workgroup
Lorraine Wright
  • Indiana Department of
  • Environmental Management
  • and
  • Indiana Geographic Information Council
  • (317)234-0618

  • The Public Land Survey System GIS Framework for
  • IGIC
  • Indianapolis, Indiana
  • March 13, 2007

  • The U.S. Public Land Survey System

  • The U.S. Public Land Survey System

  • The U.S. Public Land Survey System

  • The U.S. Public Land Survey System

Section Corners
An Existent Corner is one whose position can be
identified by verifying the evidence of the
monument, or its accessories, by reference to the
description that is contained in the field notes,
or where the point can be located by acceptable
supplemental survey record, some physical
evidence or testimony. Existent corners cannot
be disturbed or moved.
Section Corners
An Obliterated Corner is one at whose point there
are no remaining traces of the monument, or its
accessories, but whose location has been
perpetuated, or the point for which may be
recovered beyond reasonable doubt, by the acts
and testimony of the interested landowners,
competent surveyors, or other qualified local
authorities, or witnesses, or by some acceptable
record evidence.
Section Corners
A Lost Corner is a point of a survey whose
position cannot be determined, beyond reasonable
doubt, either from traces of the original marks
or from acceptable evidence or testimony that
bears upon the original position, and whose
location can be restored only by reference to one
or more interdependent corners.
Public Land Survey Issues
  • When were your original surveys?
  • Tiffins Instructions 1816
  • Instructions 1833, 1850, 1855, 1871, 1881,
    1890, 1894, 1902, 1930, 1947, 1973
  • What were your original
  • monuments?
  • Wood Posts, Stones, mounds, etc.
  • Closing Corners

Section Corners
Out of the /-100,000 original corners in
Indiana, how many are existent (i.e. properly
perpetuated and referenced)? 15-20? How many
of those have state plane coordinates associated
with their locations? 30 (15-20)? 5 of
the total What can be Done?!
What impact does this lack of documented corners
  • Uncertain reference monuments
  • Conflicting reference monuments
  • Indeterminate reference
  • monuments

Section Corners
What are the current Laws and Regulations
regarding perpetuation of public land survey
corners in Indiana?
  • IC 36-2-12-11 - County Surveyors Statute
  • Administration of section maintenance of corner
    record book
  • contents of record procedure for establishment
    and perpetuation of corners     
  • Sec. 11. (a) The surveyor shall administer this
    section if the surveyor is registered as a land
    surveyor under IC 25-21.5. If the surveyor is not
    registered, the surveyor shall, with the approval
    of the county executive, appoint a person who is
    registered as a land surveyor and is a resident
    voter of the county to administer this section.
    If a resident, registered land surveyor is not
    available, a land surveyor who resides in another
    county may be employed.      (b) The surveyor
    shall keep and maintain a corner record book,
    that must contain         (1) a record and an
    index by location of all the original government
    survey corners         (2) outline maps of each
    section, grant, tract, and subdivision or group
    of sections, grants, tracts, and subdivisions in
    the county showing the location of each corner on
    record and stating at the location of each corner
    on the map where the reference for that corner
    may be found and         (3) a reference index
    for each corner. A separate card index system may
    be used in lieu of the index required by
    subdivision (3).    

  •      (c) The record of each corner referenced in
    the record book must contain         (1) the
    location of the corner         (2) an accurate
    description of the monument used to mark the
    corner such as "stone" or "iron pin"         (3)
    the distance and bearings from the corner to
    three (3) or more permanent objects or
    structures         (4) the date the corner was
    last checked and the condition of the monument
    and references         (5) the name of the
    surveyor making the check and         (6) the
    method of establishing or relocating the
    corner.      (d) The records of the corners shall
    be established and perpetuated in the following
    manner         (1) Each year the surveyor shall
    check and reference at least five percent (5) of
    all corners shown in the corner record
    book.         (2) The surveyor may enter in the
    surveyor's corner record book the findings
    submitted by a private land surveyor who checks
    and references corners and is registered under
    IC 25-21.5.      (e) Any money in the county
    surveyor's corner perpetuation fund collected
    under IC 36-2-7-10 or IC 36-2-19 may be
    appropriated in the manner provided by law for
    the purposes of this section.
  • As added by Acts 1980, P.L.212, SEC.1. Amended by
    P.L.342-1983, SEC.2 P.L.76-1989, SEC.2
    P.L.23-1991, SEC.35.

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  • 865 IAC 1-12-30 Section corner perpetuation
  • Sec. 30. (a) This section outlines the
    procedures and requirements for registered land
    surveyors when perpetuating the location of
    original public land survey or grant corners. As
    used in this section, grant means a
    subdivision, parcel, or tract of land that
    existed, or the parent tract of which existed,
    prior to the commencement of the United States
    Public Land Survey adjoining such subdivision,
    parcel, or tract.
  • (b) The purported location of an original public
    land survey or grant corner as referenced by the
    county surveyor of the county in which the corner
    exists is prima facie evidence of that corners
    location. The registered land surveyors
    responsibility with regard to the use of or need
    for original public land survey corners or grant
    corners in association with an original or
    retracement survey is not met by merely
    contacting the county surveyor.
  • (c) If the
  • (1) location of an original public land survey or
    grant corner is not monumented and referenced by
    the county surveyor in accordance with Indiana
    Code 36-2-12 or
  • (2) registered land surveyor discovers evidence,
    or otherwise has reason to believe, that a
    monument purporting to mark the location of an
    original public land survey or grant corner is
    not in the proper location
  • and if that corner is necessary for purposes of
    conducting an original, retracement, or route
    survey as defined in this rule, the registered
    land surveyor shall contact the county surveyor
    and perpetuate that corners location in
    accordance with this section if the county
    surveyor is unable to perpetuate the corner in
    the time frame required by the registered land

  • (d) A registered land surveyor shall perpetuate
    the location of an original public land survey or
    grant corner by gathering evidence that may
    assist in determining the original location of
    that corner. This evidence includes, but is not
    limited to, the following
  • (1) Copies of
  • (A) The original public land survey field notes
    and plat or transcribed copies of same.
  • (B) Deeds and plats that reference the location
    of the corner.
  • (C) Historic survey records, road, street,
    highway, and bridge plans, corner records,
    recorded surveys and other relevant information
    from the county surveyor, county recorder or
    other county, state and municipal offices.
  • (D) Current or historic aerial photographs.
  • (E) Records from private surveyors who practice
    or used to practice in the vicinity of the
  • (2) Parol evidence from knowledgeable landowners
    or others who may have information relating to
    the corner.
  • (3) The field location of
  • (A) Fences.
  • (B) Walls.
  • (C) Roadways.
  • (D) Survey markers.
  • (E) Tree lines.
  • (F) Other lines of possession.
  • (G) Interrelated or nearby section corners,
    quarter section corners, quarter-quarter corners,
    or other aliquot corner of a section, and corners
    of common report.

  • (e) After evaluating and weighing the evidence
    outlined in subsection (d), the registered land
    surveyor shall do the following
  • (1) Apply appropriate theory of location to
    determine the probable locations of the corner.
  • (2) Excavate or otherwise determine if there is a
    subsurface monument in those locations unless, in
    the registered land surveyors opinion, there is
    no substantial possibility of
  • (A) a corner stone or
  • (B) other historical survey monument
  • being found in those locations. Examples of such
    situations include, but are not limited to,
    corner locations that fall in concrete highways,
    in areas where other excavations have previously
    taken place, such as, for culverts or sewers, or
    in areas of substantial cut or fill, such as, for
    interstate highway overpasses or underpasses.
  • Before excavating, the registered land surveyor
    shall notify the appropriate jurisdictional
  • (f) If, as a result of the corner investigation
  • (1) a corner stone
  • (2) historical survey monument or
  • (3) other evidence
  • is found marking the corner, the registered land
    surveyor shall remonument and reference the
    corner if necessary to facilitate its recovery by
    other surveyors.

  • (g) If, after excavating or otherwise
    conducting subsurface investigations of the
    probable locations outlined in subsection (e), a
    corner stone, historical survey monument, or
    other evidence of the corner is not found, the
    registered land surveyor shall do the following
  • (1) Establish the location of the corner
  • (A) based on the best available evidence and
  • (B) in accordance with procedures for lost or
    obliterated corners outlined in or authorized by
    the United States Code in 43 U.S.C. 751, 43
    U.S.C. 752, and 43 U.S.C. 753, which are hereby
    incorporated by reference.
  • (2) Monument that location.
  • (h) If the corner was perpetuated for use on an
    original, retracement or route survey, the
    registered land surveyor shall do the following
  • (1) Describe and reference the monument in such a
    manner that facilitates its recovery by other
  • (2) Document the following
  • (A) The chain of history of the corner to the
    best of his or her knowledge.
  • (B) The evidence found and weighed.
  • (C) The search area or areas.
  • (D) The theory of location applied in
    re-establishing the corner.
  • (E) Other relevant information regarding the
    perpetuation of the corner in the surveyors
    report or on the plat of survey, or both.
  • (3) Provide a copy of the surveyors report and
    plat of survey to the county surveyor.

  • How can these corners be perpetuated
    collaboratively in support of State and Local GIS
    Activities and Goals?
  • From the Indiana Code
  • Sec. 11. (a) The surveyor shall administer this
    section if the surveyor is registered as a land
    surveyor under IC 25-21.5. If the surveyor is not
    registered, the surveyor shall, with the approval
    of the county executive, appoint a person who is
    registered as a land surveyor and is a resident
    voter of the county to administer this section.
    If a resident, registered land surveyor is not
    available, a land surveyor who resides in another
    county may be employed.

  • NCEES Model Rule defining Practice of Surveying
  • 4. Practice of Surveying The term Practice of
    Surveying, within the intent of this Act, shall
  • mean providing, or offering to provide,
    professional services using such sciences as
    mathematics, geodesy, and photogrammetry, and
    involving both (1) the making of geometric
    measurements and gathering related information
    pertaining to the physical or legal features of
    the earth, improvements on the earth, the space
    above, on, or below the earth and (2) providing,
    utilizing, or developing the same into survey
    products such as graphics, data, maps, plans,
    reports, descriptions, or projects. Professional
    services include acts of consultation,
    investigation, testimony evaluation, expert
    technical testimony, planning, mapping,
    assembling, and interpreting gathered
    measurements and information related to any one
    or more of the following

NCEES -National Council of Examiners for
Engineers and Surveyors
  • a. Determining by measurement the configuration
    or contour of the earths surface or the position
    of fixed objects thereon.
  • b. Determining by performing geodetic surveys the
    size and shape of the earth or the position of
    any point on the earth.
  • c. Locating, relocating, establishing,
    reestablishing, or retracing property lines or
    boundaries of any tract of land, road, right of
    way, or easement.
  • d. Making any survey for the division,
    subdivision, or consolidation of any tract(s) of
  • e. Locating or laying out alignments, positions,
    or elevations for the construction of fixed
  • f. Determining, by the use of principles of
    surveying, the position for any survey monument
    (boundary or non-boundary) or reference point
    establishing or replacing any such monument or
    reference point.
  • g. Creating, preparing, or modifying electronic
    or computerized or other data, relative to the
    performance of the activities in the above
    described items a. through f.
  • Any person shall be construed to practice or
    offer to practice surveying, within the meaning
    and intent of this Act, who engages in surveying
    or who by verbal claim, sign, advertisement,
    letterhead, card, or in any other way represents
    themselves to be a professional surveyor, through
    the use of some other title implies that they are
    able to perform, or who does perform any
    surveying service or work or any other service
    designated by the practitioner which is
  • recognized as surveying.

  • 210.25 Inclusions and Exclusions of Surveying
  • A. Activities Included within Surveying Practice
    Activities that must be accomplished under the
    responsible charge of a professional surveyor
    (unless specifically exempted in Section B on the
    next page) include, but are not limited to, the
  • 1. The creation of maps and georeferenced
    databases representing authoritative locations
    for boundaries, the location of fixed works, or
    topography. This includes maps and georeferenced
    databases prepared by any person, firm, or
    government agency where that data is provided to
    the public as a survey product.
  • 2. Original data acquisition, or the resolution
    of conflicts between multiple data sources, when
    used for the authoritative location of features
    within the following data themes
  • geodetic control, orthoimagery, elevation and
    hydrographic, fixed works, private and public
    boundaries, and cadastral information.
  • 3. Certification of positional accuracy of maps
    or measured survey data.
  • 4. Adjustment or authoritative interpretation of
    raw survey data.
  • 5. Geographic Information System (GIS) - based
    parcel or cadastral mapping used for
    authoritative boundary definition purposes
    wherein land title or development rights for
    individual parcels are, or may be, affected.

  • 6. Authoritative interpretation of maps, deeds,
    or other land title documents to
  • resolve conflicting data elements.
  • 7. Acquisition of field data required to
    authoritatively position fixed works or
  • cadastral data relative to geodetic control.
  • 8. Analysis, adjustment or transformation of
    cadastral data of the of the parcel layer(s) with
    respect to the geodetic control layer within a
    GIS resulting in the affirmation of positional
  • B. Activities Excluded from Surveying Practice
  • A distinction must be made in the use of
    electronic systems between making or
  • documenting original measurements in the creation
    of survey products, versus the copying,
    interpretation, or representation of those
    measurements in such systems. Further, a
    distinction must be made according to the intent,
    use, or purpose of measurement products in
    electronic systems to determine a definitive
    location versus the use of those products as a
    locational reference for planning,
  • infrastructure management, and general

  • The following items are not to be included as
    activities within the definition of surveying
  • 1. The creation of general maps
  • a. Prepared by private firms or government
    agencies for use as guides to motorists, boaters,
    aviators or pedestrians
  • b. Prepared for publication in a gazetteer or
    atlas as an educational tool or reference
  • c. Prepared for or by education institutions for
    use in the curriculum of any course of study
  • d. Produced by any electronic or print media
    firm as an illustrative guide to the geographic
    location of any event
  • e. Prepared by laypersons for conversational or
    illustrative purposes.
  • This includes advertising material and users
  • 2. The transcription of previously georeferenced
    data into a GIS or LIS by
  • manual or electronic means, and the maintenance
    thereof, provided the data
  • are clearly not intended to indicate the
    authoritative location of property
  • boundaries, the precise definition of the shape
    or contour of the earth, and/or the
  • precise location of fixed works of humans.
  • 3. The transcription of public record data,
    without modification except for graphical
    purposes, into a GIS- or LIS-based cadastre (tax
    maps and associated records) by manual or
    electronic means, and the maintenance of that
    cadastre, provided the data are clearly not
    intended to authoritatively represent property
    boundaries. This includes tax maps and zoning

  • 4. The preparation of any document by any federal
    government agency that does not define real
    property boundaries. This includes civilian and
    military versions of quadrangle topographic maps,
    military maps, satellite imagery, and other such
  • 5. The incorporation or use of documents or
    databases prepared by any federal agency into a
    GIS/LIS, including but not limited to federal
    census and demographic data, quadrangle
    topographic maps, and military maps.
  • 6. Inventory maps and databases created by any
    organization, in either hard-copy or electronic
    form, of physical features, facilities, or
    infrastructure that are wholly contained within
    properties to which they have rights or for which
    they have management responsibility. The
    distribution of these maps and/or databases
    outside the organization must contain appropriate
    metadata describing, at a minimum, the accuracy,
    method of compilation, data source(s) and
    date(s), and disclaimers of use clearly
    indicating that the data are not intended to be
    used as a survey product.
  • 7. Maps and databases depicting the distribution
    of natural resources or phenomena prepared by
    foresters, geologists, soil scientists,
    geophysicists, biologists, archeologists,
    historians, or other persons qualified to
    document such
  • data.
  • 8. Maps and georeferenced databases depicting
    physical features and events prepared by any
    government agency where the access to that data
    is restricted by statute. This includes
    georeferenced data generated by law enforcement
    agencies involving crime statistics and criminal

The Schneider Corporation
The Schneider Corporation Historic Fort
Harrison 8901 Otis Avenue Indianapolis, IN
46216 Phone - 317.826.7100 Fax -
  • Gary R. Kent
  • Director, Integrated Services
  • phone 317/826-7134
  • fax 317/826-7110