This data set is a result of compiling differing source materials of various vintages. Source material examples used to create and maintain dataset include: BLM 100k Surface Map Publications, Master Title Plats, Public Land Survey GIS Data (cadnsdi v.2.0), Field Office GIS Data, Compiled 24k USGS Maps, and Land Records. Ongoing updates are made.

This data set consists of digital data describing BLM Colorado's Administrative Unit Boundaries in the State of Colorado, also known as BLM Colorado Field Office Areas. This data set was derived from BLM Colorado Field Office data captured at a scale of 1:24,000 and joined into a resulting statewide map layer. Differences in data capture techniques resulted in the data editor dropping some boundaries from various Field Office Areas to avoid sliver problems. The data was snapped to the 2016 Geographic Coordinate Data Base (GCDB) for boundary consistency

BLM Colorado Roads and Trails on BLM managed lands. This data uses the national BLM Ground Transportation Linear Features (GTLF) standard allowing for the capture of data from the Travel Management Plan (TMP) as well as from observed route usage. Additional attributes were added for Colorado specific purposes. Routes for winter only activities are separated in a separate layer. Routes where electric bikes are allowed can be easily identified by turning on the highlighting layer.

BLM Colorado Roads and Trails on BLM managed lands. This data uses the national BLM Ground Transportation Linear Features (GTLF) standard allowing for the capture of data from the Travel Management Plan (TMP) as well as from observed route usage. Additional attributes were added for Colorado specific purposes. Routes for winter only activities are separated in a separate layer. Routes where electric bikes are allowed can be easily identified by turning on the highlighting layer.

,BLM Lands Inventoried for Wilderness Characteristics is consistent with Section 201 of the Federal Land Policy and Management Act (FLPMA), which requires the Secretary of the Interior to “prepare and maintain on a continuing basis an inventory of all public lands and their resource and other values,” and the BLM Land Use Planning Handbook, BLM Colorado has identified and begun an assessment of BLM-managed lands with wilderness characteristics outside of existing WSAs. BLM Manual 6310 - Conducting Wilderness Characteristics Inventory on BLM Lands, provides the guidance from which BLM Colorado performs the wilderness characteristic inventory process.,

,BLM Lands Inventoried for Wilderness Characteristics is consistent with Section 201 of the Federal Land Policy and Management Act (FLPMA), which requires the Secretary of the Interior to “prepare and maintain on a continuing basis an inventory of all public lands and their resource and other values,” and the BLM Land Use Planning Handbook, BLM Colorado has identified and begun an assessment of BLM-managed lands with wilderness characteristics outside of existing WSAs. BLM Manual 6310 - Conducting Wilderness Characteristics Inventory on BLM Lands, provides the guidance from which BLM Colorado performs the wilderness characteristic inventory process.,

Special Surveys are non-PLSS survey areas from BLM survey records which represent federal parcels

Special Surveys are non-PLSS survey areas from BLM survey records which represent federal parcels

This data was collected by the U.S. Bureau of Land Management (BLM) in New Mexico at both the New Mexico State Office and at the various field offices. This dataset is meant to depict the surface owner or manager of the land parcels. In the vast majority of land parcels, they will be one and the same. However, there are instances where the owner and manager of the land surface are not the same. When this occurs, the manager of the land is usually indicated. BLM's Master Title Plats are the official land records of the federal government and serve as the primary data source for depiction of all federal lands. Information from State of New Mexico is the primary source for the depiction of all state lands. Auxiliary source are referenced, as well, for the depiction of all lands. Collection of this dataset began in the 1980's using the BLM's ADS software to digitize information at the 1:24,000 scale. In the mid to late 1990's the data was converted from ADS to ArcInfo software and merged into tiles of one degree of longitude by one half degree of latitude. These tiles were regularly updated. The tiles were merged into a statewide coverage. The source geodatabase for this shapefile was created by loading the merged ArcInfo coverage into a personal geodatabase. The geodatabase data were snapped to a more accurate GCDB derived land network, where available. In areas where GCDB was not available the data were snapped to digitized PLSS. In 2006, the personal geodatabase was loaded into an enterprise geodatabase (SDE). This shapefile has been created by exporting the feature class from SDE.

STATUS_ARC: This theme portrays the source information for the boundaries of the parcel polygons in OWNERSHIP_POLY and SUBSURFCASE_RIGHTS_POLY.