On Aug 20, 2005 Brian M organized a trek to Corral Hollow -- rated 5 in BCA. We had two Freelanders and two Discos. When we completed the Corral Hollow run, Mike took us to the top of the Slick Rock Trail to have a go at some tougher wheelin'. We encounted a series of increasingly difficult obstacles until we found one we decided the Freelanders shouldn't attempt. The Discos ran this one down and back with relative ease. Great day!!