Apart from a death wish, why do you rockheads ski out of bounds, anyway? Yeah, we know: for untracked powder, empty slopes and vertical drops that would strike terror into the heart of a skydiver. But why risk getting buried under a pile of champagne powder? Instead, make the drive to Silverton Mountain. Every run here must be guided, so a maximum of just forty skiers are permitted on the single-lift mountain per day. The area gets just over 33 feet of snow a year, so fresh powder isn't a problem. You want challenging? Silverton's easiest slopes average 30-degree drops -- what passes for a double-black diamond at most resorts. The steepest, about 55 degrees, practically require a belay. At $99 a day (reservations required), it's a bargain.