GeoSnaps - Image of the Day
Geologic snapshots capturing Arizona’s geologic setting and mining history with a picture of the day from 1 January through 31 December 2013.
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8/2006 | Upper San Pedro River near Hereford, AZ – Cochise County | A filled channel cut is exposed in the modern channel wall of the downcutting San Pedro River near Hereford, AZ. Coarser-grained sediment fills a paleochannel cut into finer-grained basin fill deposited before the San Pedro transitioned from a low energy marsh-like environment to arroyo-style downcutting. (Photo by Joe Cook)