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 data set is a polygon coverage created in ARC/INFO that represents the generalized thickness of the Minnelusa Formation, Black Hills, South Dakota. The thickness of the Minnelusa Formation...
data.gov
An official website of the GSA's Technology Transformation Services