Sinks Canyon State Park

I took this photo of the Sinks in Sinks Canyon State Park in the Wind River Mountains of Wyoming.

http://sinkscanyonstatepark.org/ 

The Popo Agie River actually disappears (sinks) into the canyon mouth and reappears about a quarter mile down the canyon. This is a fascinating phenomenon in the magnificent Wind River Mountains. It's been said that Louis L'Amour considered these mountains his favorites. 

(I was a bit confused when I first heard of Sinks Canyon. The term "sinks" was the name used for the latrines on frontier forts.)