"Geology." . . "Geological Survey (U.S.)," . . "United States" . . "Death Valley National Park (Calif. and Nev.)" . . "Paleozoic Geologic Period." . . "From 230 to 570 million years ago" . . "California" . . "Geology, Stratigraphic Paleozoic Maps." . . "Geology California Inyo County Maps." . . "Geology, Stratigraphic." . . . . . . . "Maps"@en . . "Geologic map and Upper Paleozoic stratigraphy of the Marble Canyon area. Cottonwood Canyon quadrangle, Death Valley National Park, Inyo County, California"@en . . . . . . . . . . . .