50410101 Upper Cretaceous-Tertiary Sandstones 50410181 Raton Coalbed Gas 50410182 Vermejo Coalbed Gas 50410201 Fractured Reservoirs 50410202 Jurassic-Lower Cretaceous ReservoirsThe following is a description of the Online Linkage URLs:
<http://certmapper.cr.usgs.gov/noga/servlet/NogaGISResultsServ?subtheme=41&page=gis&vintage=2000> - GIS Data Download Page for Province 41
<https://pubs.usgs.gov/dds/dds-069/dds-069-n/> - 2004 National Oil and Gas Assessment of the Raton Basin-Sierra Grande Uplift Province, New Mexico and Colorado, USGS DDS-69-N <http://energy.cr.usgs.gov/oilgas/noga/> - NOGA Online Homepage
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