The Yampa River's famous Warm Springs Rapid was rearranged by a landslide from the cliff face on river left in August of 2012.
Dinosaur National Monument has prepared a summary of the changes at the rapid. The document contains brief description of the geological event and photographic documentation of the changes to the cliff face and rapid below.
River runners - check it out, it's a great photo story.
You can download the report here:
or you can read it below.