Rainbow in clay

Providence Canyon in Georgia is not actually a purely natural feature—many of the massive gullies —the deepest of which is more than 150 feet (46 m) — are...
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Providence Canyon in Georgia is not actually a purely natural feature—many of the massive gullies —the deepest of which is more than 150 feet (46 m) — are the result of erosion due to poor farming practices in the 19th century.

This story of the origin of the canyons has been commonplace since the 1940s, but the formations in the canyons are at least partially natural. Evidence of the existence of the canyons includes their mention in a deed by James S. Lunsford to William Tatam from 1836.
The park lies on marine sediments, usually loamy or clayey, with small areas of sand. Loamy sand topsoils overlie subsoils of sandy clay loam, sandy clay, or clay in most of the uneroded sections. Nankin, Cowarts, Mobila, and Orangeburg are the most prominent soil series. The canyons have significant exposure to clay, over which water often seeps. Water is mobile in this well-drained area.
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