Sinks Canyon

Sinks Canyon State Park is 7 miles south of my hometown. It is named Sinks Canyon because the Popo Agie (pronounced po po' zsha) River disappears into the limestone cavern pictured above and reappears a quarter of a mile away (at what the locals call the “Rise”). The average flow of the Popo Agie into the Sinks is about 100 cubic feet per second (less in winter, much more during spring runoff). Interestingly, more water goes into the Sinks than comes out at the Rise.

The limestone cliffs in Sinks Canyon make it a popular mecca for rock climbing. Enlarge the photos of the cliffs, and you should be able to make out climbers on the face of the rock.