Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https://
means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
This ArcView shapefile contains a representation of the Decker coalfield boundary. This theme was created specifically for the National Coal Resources Assessment in the Northern Rocky Mountains...
data.gov
An official website of the GSA's Technology Transformation Services