Geologic Map of the Sawtooth Mountains and the North End of the West Silver Bell Mountains, Pinal and Pima Counties, Southern Arizona

The Sawtooth Mountains are a small (45 km2 ), low-relief (250 m), yet rugged range composed of essentially flat-lying, Mid-Tertiary volcanic rocks. Along with the West Silver Bell Mountains, which consist mostly of Middle Proterozoic granitic rocks, the ranges form the southwestern boundary ofthe Picacho basin, a major north-trending, approximately 20 km-wide, 3 l

Keywords:

• Geologic map
• Basement (geology)
• Quaternary
• Paleontology
• Pleistocene
• Geology
• Ridge
• Basin and range topography
• Volcanic rock
• Structural basin

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