This contains a geological map and index map of quadrangles for the Colorado plateau area.

This is a photogeologic map, scale 1:24,000, of the Colorado Plateau Area, Orange Cliffs-7, in Wayne County, Utah.

This is a photogeologic map, scale 1:24,000, of the Colorado Plateau Area, MOAB-15, in Grand County, Utah.

Abstract: The Happy Jack uranium deposit of White Carron, San Juan County, Utah, was studied in connection with an Atomic Energy Commission exploration program. The major uranium ore control is a paleostream channel containing sediments of the Shinarump conglomerate. Intrachannel controls include organic matter, lithologic variations, and channel "lows". Microscopic studies reveal that uraninite, the primary ore mineral, occurs as cement and as a replacement of organic material. Both the uraninite and copper sulfides replace secondary quartz overgrowths. Crystals of chalcopyrite, chalcocite, and pyrite occur one within the other. Resolution of bornite and chalcopyrite is present. Uraninite is dated as later than the secondary overgrowths and of about the same age as the copper sulfides.

This is a photogeologic map, scale 1:24,000, of the Colorado Plateau Area, Circle Cliffs-8, in Garfield County-8.