Tuesday, December 15, 2015

Acidic Springs, Cement Creek, Silverton, Colorado

Acidic Springs 
Acidic Springs by U.S. Geological Survey

In this photo, you can see a natural iron-rich acidic spring flowing into Cement Creek near Silverton, Colorado, which occurs as a result of water percolating through various heavy metals found in the ground. Similar natural springs also contribute water to Cement Creek and other tributaries of the upper Animas River. Photo credit: Briant Kimball, USGS.

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