There are a couple of trails in the vicinity of Bob's - one is a loop that starts at the bottom of Bob's and connects back in about halfway up (near the bench) and the other connects Bob's to 8th Street, which connects in at almost the same spot on Bob's. The latter is legal, the former I believe is not legal (but I have hiked and biked it. Bad Earthpig!!) Not sure whether either has an official name.