I've also been trying to glean info about Black Dragon Wash. I'll be passing through Green River from Moab in about 10 days, solo on a KLX250, as I make my way west from Colorado on a TAT/BDR ride. I PMd a TAT rider whose ride report said he passed through there a couple weeks ago, but haven't gotten a reply. Online reports seem all over the place -- Triumph Tigers having no problem in some cases....and 250 lbs. dirt bikes struggling in others . Hopefully @AT Blizzard has some good intel to share.