GCDB Resources
User Guide
The GCDB User Guide describes the geographic coordinate database (GCDB), the database geographic coordinates, and associated attributes, for all corners of the Public Land Survey System (PLSS).
- GCDB User Guide (PDF) (194KB)
Data Downloads
This layer contains the points and lines generated from the GCDB. These form the basis for township and range, section lines, and federally owned land parcels.