Black Velvet Canyon. Overview; Map; Guidebooks; Photos/Videos; Weather Black Velvet Wall. 25, Rock Warrior. -. b ***, 7. 26, Prince of Darkness. SuperTopo rock climbing route info on: Black Velvet Canyon - Epinephrine - Red Rocks, Nevada USA. For those who like a rock scrambling, boulder hopping route with few people to contend with, this hike is for you. It's a little out of the way, but it's in a very scenic.