Altitude of the bottom of the Trinidad Sandstone in the Raton Basin, Las Animas County, Colorado
This data set consists of structure contours that show lines of equal altitude of the bottom 
of the Trinidad Sandstone, the contact between the Trinidad Sandstone and Pierre Shale, 
in Las Animas County, Colorado.  The U.S. Geological Survey developed this data set as 
part of a cooperative project with the Colorado …