Black Mountain from the northeast; composed of Batamote andesite. Note steep debris slopes below the cliffs and the uneven topography at the base in contrast with the smooth pediment carved on quartz monzonite, shown in photo 63.
Dates
Date Taken
1932
Summary
Black Mountain from the northeast; composed of Batamote andesite. Note steep debris slopes below the cliffs and the uneven topography at the base in contrast with the smooth pediment carved on quartz monzonite, shown in photo 63. Pima County, Arizona. 1932. Plate 1-C, in U.S.Geological Survey Professional paper 209. 1946.
Summary
Black Mountain from the northeast; composed of Batamote andesite. Note steep debris slopes below the cliffs and the uneven topography at the base in contrast with the smooth pediment carved on quartz monzonite, shown in photo 63. Pima County, Arizona. 1932. Plate 1-C, in U.S.Geological Survey Professional paper 209. 1946.
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