The GeoCommunicator Land Survey Information System or LSIS is the official federal government Web site for the distribution of the Public Land Survey System (PLSS) data to support the mapping of federal land parcels.
The Bureau of Land Management (BLM) Cadastral Survey Program is responsible for the official boundary surveys of all federal-interest lands in the United States, which is over 700 million acres, nationwide. The Public Land Survey System is the foundation for many survey-based geographic information systems.
Latest News: Our new PLSS datasets are here!
PLSS Download Availability - Legacy Data
The CadNSDI dataset is being distributed as statewide file geodatabases. Alternate sources of PLSS data will continue to be served mainly in the western states where BLM is the data steward or the data is from a trusted source. In the future, BLM plans to provide the CadNSDI data by county and user-defined areas of interest. We will continue to distribute the Legacy PLSS data until further notice. PLSS Map Services will continue to the use the legacy PLSS format.
|Additional CadNSDI PLSS Data Disclaimer - Please Read
CadNSDI PLSS Handbook - FAQs, concepts, definitions, standards
CadNSDI Data Schema Mapping - Overview and Crosswalk with legacy formats (DOC or PDF)
Report all PLSS errors to: GCDB Manager for the
state where the lands are located
|Formats: ESRI ArcGIS 9.3 CadNSDI PLSS-File GeoDatabase
Legacy PLSS-Shapefile Format
Projection: Geographic(GCS) NAD83 Datum
Metadata: Embedded for CadNSDI PLSS format
See Metadata page for Legacy Metadata and a sample of the CadNSDI metadata
New CadNSDI PLSS Data Download
Complete Statewide file geodatabase
with embedded metadata
Select 'BLM FGDB' to download
Select 'Source Data" file (BLM or Alt) to download State data or select "County Download" to go to the County selection
BLM File GDB
State BLM GCDB Shapefile
State Alt Source Shapefile
Download By County
PLSS Map Services (map and feature) in Legacy Format only:
ArcIMS: Server: http://www.geocommunicator.gov, Service Name: BLM_MAP_PLSS, BLM_FEATURE_PLSS
ArcGIS (REST, SOAP, WMS, KML) http://www.geocommunicator.gov/ArcGIS/rest/services/PLSS/MapServer