Image:Headward erosion.jpg

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Gully developing headward by sapping and modified by slipping. Two miles southeast of Mount Tamalpais. A characteristic landslip hollow at right. Compare 2835. Tamalpais quadrangle, Marin County, California. 1906.

Digital File:ggk02834 ID. Gilbert, G.K. 2834

Original found at [1] using keyword "headward."

Image uploaded to illustrate article headward erosion.

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