1982. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by the Open-File Services Section, Western Distribution Branch, USGS. English. Public. Montana. Cretaceous.
Search Results
1982. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by the Open-File Services Section, Western Distribution Branch, USGS. English. Public. Montana. Cretaceous.
3. Map showing cumulative thickness of sandstone in the Lakota Formation and equivalent rocks, Montana
1982. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by the Open-File Services Section, Western Distribution Branch, USGS. English. Public. Montana. Cretaceous.