. . . "Wyoming, Colorado, Montana"@en . . . . . . . . . . . . . . . "N. H. Darton, 1904"@en . . . . . . . . . . . "expanded"@en . . . . . . . . "sedimentary"@en . . . . . . . . . . . . . . . . . "Chugwater Formation"@en . "The Chugwater Formation is a mapped bedrock unit consisting primarily of red sandstone, in the states of Wyoming, Montana, and Colorado in the United States. It is recognized as a geologic formation in Colorado and Montana, but as a Group (set of formations) in Wyoming. Due to its lack of fossils and its presence below the highly studied Morrison Formation, the Chugwater receives little attention."@en . . "Chugwater Formation"@en . . "Outcrop of Chugwater Group near Thermopolis, Wyoming"@en . . . . . "906535803"^^ . . . . . "The Chugwater Formation is a mapped bedrock unit consisting primarily of red sandstone, in the states of Wyoming, Montana, and Colorado in the United States. It is recognized as a geologic formation in Colorado and Montana, but as a Group (set of formations) in Wyoming. Due to its lack of fossils and its presence below the highly studied Morrison Formation, the Chugwater receives little attention."@en . "4642673"^^ . . . . . . . . . . . . . . . . . . . "5321"^^ . . . "Triassic"@en . . . . . . . . "expanded"@en . . . . . . .