Crystal River, Bogan Canyon in Marble, Colorado 720 cfs

Bogan Canyon section of the Crystal River starts in the town of Marble and ends in Redstone. There are many other access points in between if you want to shorten the close to 12 mile run. Deadfalls tend to collect in spots, so keep your eyes peeled. While none of the rapids are very difficult, the water was ice cold and continuous. Wear a dry suit and dress for the swim to fully enjoy this beautiful, fast paced alpine stream.