One of the most clever and crude climbing route names ever is in Colorado — Eldorado Canyon’s “Your Mother,” a 5.12d sport route on the west aspect of the Bastille. The possibilities for conversation for men giggling like high school freshmen are endless: “I was on Your Mother last Saturday,” “I just got off Your Mother,” et cetera. And yet you don’t have to worry about explaining the name to your 10-year-old when you’re at the crag, should he or she find it while flipping through a guidebook.