Regional Geologic Map of Parts of Culberson and Hudspeth Counties, Texas (United States Geological Survey Oil and Gas Investigations Preliminary Map OM-90).. Questo articolo non è disponibile.Regional Geologic Map of Parts of Culberson and Hudspeth Counties, Texas (United States Geological Survey Oil and Gas Investigations Preliminary Map OM-90).

Large folded sheet; includes a geologic map, structure map, a general columnar section with description of units, a columnar section with description of units, a table summarizing wildcat well, a discussion of geology, and an index map with citations of principal geologic sources; ex-corporate library; a couple of small tears where folded; geologist marked sample collecting localities (?) in ink on map; several notations in pencil written on map.