Public Land Survey System - Sections on USDA Forest Service Lands
Metadata from the RGIS Metadata Repository
Identification Information
- Title Public Land Survey System - Sections on USDA Forest Service Lands
- Date 2009-07-26
- Date Type Publication
- Cited Responsible Party
-
- Organization Name USDA Forest Service, Southwestern Regional Office
- Role identify
- Presentation Form vector digital data
- Abstract This feature class depicts the boundaries of Land Survey features called sections, defined
by the Public Lands Survey System Grid. Normally, 36 sections make up a township. The entire extent
of each of these units should be collected, not just the portion on National Forest System lands.
This dataset is derived from the USFS Southwestern Region ALP (Automated Lands Program) data
Project. This is one of six layers derived from ALP for the purpose of supplying data layers for
recourse GIS analysis and data needs within the Forest Service. The six layers are Surface
Ownership, Administrative Forest Boundary, District Boundary, Townships, Sections, and Wilderness.
There were some gapes in the ALP data so a small portion of this dataset comes from CCF
(Cartographic Feature Files) datasets and the USFS Southwestern Region Core Data Project. ALP data
is developed from data sources of differing accuracy, scales, and reliability. Where available it is
developed from GCDB (Geographic Coordinate Data Base) data. GCDB data is maintained by the Bureau of
Land Management in their State Offices. GCDB data is mostly corner data. Not all corners and not all
boundaries are available in GCDB so ALP also utilizes many other data sources like CFF data to
derive its boundaries. GCDB data is in a constant state of change because land corners are always
getting resurveyed. The GCDB data used in this dataset represents a snapshot in time at the time the
GCDB dataset was published by the BLM and may not reflect the most current GCDB dataset available.
The Forest Service makes no expressed or implied warranty with respect to the character, function,
or capabilities of these data. These data are intended to be used for planning and analyses purposes
only and are not legally binding with regards to title or location of National Forest System
lands.
- Purpose The purpose of this feature class is to depict USFS administrative and ownership boundaries
on this National Forest to be used in conjunction with the management activities.
- Status Complete
- Point of Contact
-
- Individual Name
- Organization Name USDA Forest Service, Southwest Regional Office
- Position Name Forest Land Staff
- Role Point of contact
- Voice 505-842-3292
- Facsimile 505-842-3855
- Address
-
- Delivery Point 333 Broadway SE
- City Albuquerque
- Administrative Area New Mexico
- Postal Code 87102
- Country
- Electronic Mail Address Mailroom_R3@fs.fed.us
- Maintenance and Update Frequency As needed
- Descriptive Keywords Surface Ownership, Administrative Boundaries, Ranger District Boundaries, Townships, Sections, Wilderness, United States Forest
Service, Proclaimed Boundary
- Access Constraints None.
- Use Constraints This product is geospatial information prepared by the U.S. Department of Agriculture,
Forest Service. These data has been developed from sources of differing accuracy, scales, and
reliability and may not be spatially accurate. Public Land Survey, ownership, and administrative
boundary lines are not definitive in their location and do not necessarily represent the location of
legally surveyed boundaries. The Forest Service makes no expressed or implied warranty with respect
to the character, function, or capabilities of these data. These data are intended to be used for
planning and analyses purposes only and are not legally binding with regards to title or location of
National Forest System lands. The Forest Service reserves the right to correct, update, modify, or
replace this information without notification.
- Language English
- Topic Category planningCadastre
- Extent
-
- Geographic Bounding Box
-
- West Bound -113.318731
- East Bound -99.356139
- North Bound 37.0717
- South Bound 31.079174
- Temporal Extent
-
- DateTime 2007-03-01
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Distribution Information
- Distributor
-
- Individual Name
- Organization Name Earth Data Analysis Center
- Position Name Clearinghouse Manager
- Role Point of contact
- Voice 505-277-3622 ext. 230
- Facsimile 505-277-3614
- Address
-
- Delivery Point MSC01 1110
- Delivery Point 1 University of New Mexico
- City Albuquerque
- Administrative Area NM
- Postal Code 87131-0001
- Country USA
- Electronic Mail Address clearinghouse@edac.unm.edu
- Transfer Options
-
- Online Resource ZIP
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Spatial Reference Information
- Spatial References
-
- Spatial Reference North American Datum of 1983
-
- Online Reference EPSG:4269
- Spatial Reference Geodetic Reference System 80
-
- Online Reference EPSG:7019
- Spatial Reference Lambert Conformal Conic
-
- Online Reference ESRI:Unknown
- Indirect Spatial Reference United States
- Geometric Object Type G-polygon
- Geometric Object Count 52234
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Data Quality Information
- Attribute Accuracy Report
-
- Report Accuracy and completeness was checked by manually comparing this dataset with other
datasets of similar subject with on-screen review.
- Quantitative Attribute Accuracy Assessment
-
- Attribute Accuracy Value
- Attribute Accuracy Explanation
- Horizontal Positional Accuracy Report
-
- Report Based on accuracy statements made for USGS topographic quadrangle maps. Targeted to
National Standard for Spatial Data Accuracy (NSSDA). The National Map Accuracy Standards for 7.5
minute 1:24,000 quadrangles applies to this feature class, which state that a feature will be within
approximately 40 feet of its true position.
- Quantitative Horizontal Positional Accuracy Assessment
-
- Horizontal Positional Accuracy Value
- Horizontal Positional Accuracy Explanation
- Logical Consistency Report Polygon topology present.
- Completeness Report Data set is complete.
- Lineage
-
- Source Information
-
- Source Citation
- Source Scale Denominator 24000
- Type of Source Media electronic bulletin board
- Source Time Period of Content
-
- Beginning Position 1996
- Ending Position 2000
- Source Currentness Reference Most current data available within the stated time period.
- Source Citation Abbreviation Unknown
- Source Contribution Unknown
- Source Information
-
- Source Citation
- Source Scale Denominator 24000
- Type of Source Media electronic bulletin board
- Source Time Period of Content
-
- DateTime 2007-03-01
- Source Currentness Reference Most current data available within the stated time period.
- Source Citation Abbreviation ALP
- Source Contribution data
- Source Information
-
- Source Citation
- Source Scale Denominator 24000
- Type of Source Media electronic bulletin board
- Source Time Period of Content
-
- DateTime 2000
- Source Currentness Reference Most current data available within the stated time period.
- Source Citation Abbreviation BLM
- Source Contribution database
- Process Step
-
- Process Description These seven layers were derived from ALP: Administrative Boundary Proclaimed Boundary
District Boundary Surface Ownership Sections Townships Wilderness Data for six of the seven feature
classes was loaded from individual ALP coverages for each Forest using ArcCatalog. The ALP coverages
for the forests break on township lines rather then forest boundaries. Although the ALP coverages
were edged matched some additional edge matching was required. Topology rules were created for
editing utilizing "Must not Overlap" and "Must not have gaps" rules. Forest Administrative
Boundaries were created by dissolving the Ranger District Boundaries. Notes: 1. Forest
Administrative Boundaries were created by dissolving the Ranger District Boundaries. 2. Townships
and Sections were merged with "Union" in a separate Geodatabase before loading into the final
Geodatabase. Sections and townships were edited together. Townships were dissolved from sections
after editing. 3. The Prescott data came from the more recent Prescott Pilot Project. All other data
mostly came from ALP. The Prescott Pilot originates from more recent GCDB data then the rest. The
edge of the Prescott with the Kaibab, Coconino, and Tonto did not edge match. Edge matching was done
alone the outside edge of the Prescott boundary making it a clean dataset. 4. District Boundaries
for the Prescott Project were missing. Prescott District Boundaries were derived from the most
recent CFF data. Used the same version of CFF that was used to fill in gapes in the Prescott
Project. 5. District Boundaries on the Gila were incomplete in ALP. What District Boundaries did
exist in ALP for the Gila were wrong particularly in the area of the Wilderness District. District
Boundaries for the Gila were derived fro vintage 11 CFF, the same CFF used in ALP to fill in gaps of
data. 6. Wilderness Areas for the Prescott were derived from a combination of Prescott Project data
and very recent cartography data. The cartography data comes from very close examination of the
actual wilderness legal descriptions. 7. Sycamore Canyon Wilderness has many conflicts in its
descriptions. Two of the larger conflicts are labeled as Proposed Wilderness in this data set. The
one on the Kaibab is in ALP but may be wrong (Jacks Canyon.) The other one on the Coconino was not
in ALP and may not actually be Congressionally designated Wilderness yet but apparently is managed
as wilderness by the Coconino. This one was mapped by cartography data in the RO. 8. The boundary
between the Gila and Apache Forests along the Arizona and New Mexico border did not edge match. This
is probably because the two states have different GCDB data sets. In this data set that line was
edge matched using the Arizona or Apache ALP data. 9. The Gila has three locations where Townships
overlap each other. Some of them by as much as a half mile. The overlaps were left as overlaps for
both Townships and Sections on the Gila for this dataset. The error was clearly an error in the GCDB
data that has never been resolved. There were no conflicts with Surface Ownership because of this.
10. Surface Ownership was derived by linking to the ALP database using the ALP CN numbers. There
were a small hand full of polygons that did not link to ALP. Mostly because they were missing CN
numbers. Ownership for these parcels was derived by comparing with other ownership data layers
including older versions of ALP. 11. Most of the Grassland units did not link to ALP. The ALP data
for these units appears to be missing in ALP. Ownership for theses units was derived from somewhat
older ALP data then the rest. The exception to this was the "Black Kettle" Grass Land unit where a
link to ALP was made 12. Many of the ALP coverages had small slivers and gaps. These slivers and
gaps were mostly found using the topology rules "Must Not Have Gaps" and Must Not Overlap." An
example of these slivers would be where the corner of a rectangular meats and bounds parcel barely
crossed over a section line leaving a very small triangular sliver. These slivers were sometimes
missed in the editing of the coverages in ALP but became obvious in Geodatabase with topology rules.
In most cases it was obvious what parcel the sliver belonged to so theses slivers were merged with
there appropriate parcel. 13. Some ALP data had overlapping in Surface Ownership and Section
polygons. I all most all cases it was only editing error and the overlap had the same attributes. In
only a few cases did the overlap actually need to be reconciled. All overlaps were eliminated except
for those in Sections and Townships on the Gila mentioned before. 14. The "Escudilla Wilderness" on
the Apache N.F. was not in ALP. The boundary of this wilderness was derived from vintage 11 CFF data
15. The "Bear Willow Wilderness" on the Apache was not in the wilderness feature class in the ALP
cover but the line work was. Wilderness area created from line work. 16. The "Columbine-Hondo
Wilderness Study Area" on the Carson was not was not in ALP. This wilderness study area was added
using Southwester Regional GIS code data. 17. Townships and Sections have a gap on the "Magdalena"
ranger district on the Cibola. This gap also showed up in Surface Ownership. The gap was filled as
"USFS" owned land. 18. District and Forest Boundary for the "Mountanair" district of the Cibola N.F.
were depicted differently in two different feature classes in ALP. The boundary in the
ranger_district feature class was clearly wrong so the boundary in surf_own was used here. 19. Some
last minute land status changes were made on the Santa Fe National Forest. Because Lands is still
working on entering data into the tabular ALP theses parcels do not yet have CN numbers although the
line work is from ALP and the ownership is correct. 20. ALP was not consistent with private
ownership within wilderness areas. In some areas the private land was cut out of the wilderness and
in others it was not. In this dataset we made it consistent by cutting out all private land out of
wilderness. There is one place on the "Kachina Wilderness" on the Coconino where this was not able
to be reconciled.
- Process Date 2007-02-26
- Process Time
- Process Contact
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Metadata Reference Information
- File Identifier 390b0196-1e76-4ed6-88eb-f85e1f73777e
- Metadata Language English
- Hierarchy Level Dataset
- Date Stamp 2024-12-11
- Metadata Standard Name ISO 19115:2003
- Metadata Standard Version 1.0
- Metadata Contact
-
- Individual Name
- Organization Name Earth Data Analysis Center
- Position Name Clearinghouse Manager
- Role Point of contact
- Voice 505-277-3622 ext. 230
- Facsimile 505-277-3614
- Address
-
- Delivery Point MSC01 1110
- Delivery Point 1 University of New Mexico
- City Albuquerque
- Administrative Area NM
- Postal Code 87131-0001
- Country USA
- Electronic Mail Address clearinghouse@edac.unm.edu
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