By Cowper Chadbourn, Charles Chevaillier, Andy Hicks, Nathan Kline, and Joe Warren (of Galveston, TX), except for Big Devil's Waterfall (one of the Twin Falls) which was first run by Nathan Kline on April 29, 1995. First Known OC-1 descent by Lance Jones and Dale Barton on May 8, 1995. Only one "piton" has occurred on Big Devil's Falls dispite the shelf rock at the base of the drop. Keep your speed up and try to launch well into the pool by running left of center.

This run begins as a creek so tiny that you will think you have made a mistake, but quickly builds in intensity. Lots of ledge drops and slides and several undercuts. The "Sphinkter" is visually impressive. Remember that a deep undercut lurks under the river right wall! The run of Twin Falls is the highlight of the trip. Depending on water level, you may either run the Big Devil's side, or access and run the Long Devil's side via a short carry. Be prepared for a "big water" creek run through some of Richland's most difficult rapids after the junction (IV+ at these levels). All rapids have been run, although the boulder jumble just below the first waterfall has been marginal for water levels encountered to date.

Like other micro-volume creeks, meaningful ratings are difficult to establish on the accepted International scale. At lower levels, the creek will seem like a very technical Class III, with much rock bashing, scraping, and some portages. At higher levels, two or more rapids are expected to become solid Class V.