The LND_SurfaceEstate data is a geodatabase illustrating the location of Federal and State managed lands in California and portions northwest Nevada. The data is developed and maintained at the BLM California State Office in Sacramento. The focus of the data development efforts are on accurately depicting the locations of BLM managed lands. Private and non-governmental lands are categorized as unclassified. Other Federal agencies, the State of California , and numerous County governments contribute much of the information and data incorporated into this geodatabase. Data for lands in Nevada were obtained from the Bureau of Land Management, Reno, Nevada.
The LND_SurfaceEstate data is edited and maintained in a single polygon feature class. Whenever possible, BLM lands are constructed from the Public Land Survey System (PLSS), also available to the public (PublicLandSurvey.gdb). Alignment of BLM data with the PLSS is a continual process, as the accuracy and density of PLSS data continues to improve and develop. Issues of misalignment with the PLSS are more common with non-BLM management areas. These discrepancies are being addressed at the BLM California State office based on U.S. Department of Interior priorities throughout the State of California.
Updated frequently and as required
BLM California State Office, Mapping Sciences Sacramento, CA
2800 Cottage Way
This data is provided for the public use. It is intended to represent BLM administered lands in California and portions of northwestern Nevada.
Accuracy is evaluated primarily through use of the data, and at the time the data is updated or otherwise edited.
Updates emphasize BLM ownership. Other ownership categories will be updated as opportunities become available.
Polygons are checked to be sure all polygons have at least one set of attributes, and no more than one set of attributes. Polygon edges are examined to be sure that they close correctly.
These data are public information and may be used and interpreted by organizations, agencies, units of government, or others. The user has sole responsibility for ensuring the appropriate application of these data and the U.S. Bureau of Land Management shall not be held liable for any use or misuse of the data described hereon. Generally, these data are intended for small scale (1:24,000 and smaller) natural resource management and planning applications. It is strongly recommended that these data be acquired directly from the U.S. Bureau of Land Management and not indirectly through some other source which may have changed the data. It is also strongly recommended that careful attention be paid to the content of the metadata file associated with these data. Users are cautioned that digital enlargement of these data to scales larger than that at which they where originally mapped can cause misinterpretation. Users are further cautioned that these data and interpretations derived from them do not eliminate the need for onsite survey and evaluation of specific sites for intensive uses.
These data are provided without the approval of the Director of the U.S. Bureau of Land Management and no warranty expressed or implied is made regarding the accuracy, completeness, or utility of these data, nor shall the act of distribution constitute any such warranty. Any conclusions drawn from the use or misuse of these data are soley the responsibility of the user and the U.S Bureau of Land Management shall not be held liable for such use. This disclaimer applies both to individual use of these data and aggregate use with other data.
2800 Cottage Way