The New Mexico Land Index is intended primarily to provide a standardized spatial index to land grant areas in the State of
New Mexico and, to a lesser extent, to similarly provide a spatial index to other lands in New Mexico for which Geographic
Coordinate Data Base (GCDB) data have not yet been published and for which alternate source GCDB data are not available. The
New Mexico Land Index is intended primarily to provide a standardized spatial index for land grant areas in the State of New
Mexico and, to a lesser extent, to similarly provide a spatial index to other lands in New Mexico for which Geographic Coordinate
Data Base (GCDB) data have not been published yet and for which alternate source GCDB data are not available. The design and
implementation of the New Mexico Land Index ensures that it is compatible with the Cadastral NSDI (CADNSDI) Public Land Survey
System (PLSS) data set.
As spatial indices, the feature classes are intended to facilitate geocoding operations and other spatial analyses within
a framework consistent with the PLSS.
Resource language:
eng; USA
Resource progress code:
complete
Resource Maintenance Information
maintenance or update frequency:
asNeeded
Constraints on resource usage:
Legal Constraints
Access Constraints
otherRestrictions
use constraint:
otherRestrictions
Other constraints
Access Constraints: None. Use Constraints: These data are for GIS and mapping purposes and are not intended to support or
replace land survey data or the information provided by land survey.
Spatial representation type code:
vector
Processing environment:
Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.4000
Resource extent
Geographic Extent
Geographic Bounding Box
westBoundLongitude
-109.045789
eastBoundLongitude
-103.698366
northBoundLatitude
36.995878
southBoundLatitude
31.785792
Temporal Extent
Publication date
2012-04-06
Additional information on resource:
The data set consists of two feature classes, NM Grant Lands FirstDivision and NM Grant Lands SecondDivision. The first provides
a section-level index grid and the second, a nominal subdivision or second division index grid. The feature classes are intended
to facilitate geocoding operations and other spatial analyses within a framework consistent with the PLSS.
description Per the BLM Manual of Surveying Instructions 2009, BHI attempted to recreate the index townships, first and second divisions
as close to the original instruction intent as possible. Because of existing irregularities in the PLSS subdivided areas,
some basic assumptions were made to facilitate the indexing. Township lines were protracted across the blank grant spaces
and the township numbering scheme was interpolated across these areas as well. No half or quarter townships were created in
this process. In some instances, the township lines were squared off to more closely represent a cardinal N-S or E-W line
rather than create a skewed parallelogram. Once the townships were created, the sections were protracted within each township.
Holding the southeast corner and starting at section 36, the sections were protracted along the east-most tier to section
1, and then resuming at the south of the township at section 35 along the second east-most tier until all 36 sections were
created. This process follows the 2009 manual and places the excess or deficiency in the north-most and west-most tiers of
sections. Because the townships in many cases were irregular, excess or deficiency also was placed in the south and east tiers.
Because this is an index layer, no attempt was made to ensure that these protractions were within the stated 2009 limits.
The interior section lines were held at cardinal N-S and E-W directions. Lastly, the second division was created for each
section following BLM Instructions by connecting and intersecting the mid points to create the final second division lines.
Once all the township, and first and second divisions were created, the protracted areas were clipped to the existing land
grant lines and labeled as index divisions.
processing agent contact
-
processor
individual Name Dennis Sandin
organisation Name
Bohannan-Huston, Inc.
position Name Senior Vice President and Managing Principal
Contact information
Telephone
Voice 505-798-7925
Fax 505-798-7932
Address
Courtyard I7500 Jefferson St. NE, Albuquerque, NM, 87109-4335
Country USA