Question of the Week Answer
If you answered 1, you are correct!
The rounded, oddly shaped contours of the Alabama Hills form a sharp contrast to the glacially carved ridges of the Sierra Nevada. While both land forms consist of the same granitic rock, the fantastic shapes of the hills were formed by a combination of natural chemical weathering and wind erosion.
Chemical weathering is caused by rain water reacting with the mineral grains in rocks to form new minerals (clays) and soluble salts. These reactions occur particularly when the water is slightly acidic.
If you visit the hills please remember to leave no trace and leave the awesome rocks as you found them.
Alabama Hills Photo: BLM
Source: BLM.gov The Geological Society
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