Camped at South end of Black Canyon lake and climbed couloir to Avalanche first. From there it was straight forward through the saddle to the summit. On the way out I slipped on an unstable boulder near the north end of BC lake. I thought it was a bad ankle sprain and in trying to favor it it, I took a bad step 20 minutes later and sprained my other ankle. I just mentally divided the 4 miles back to the car into 10 minute increments. X-rays revealed a hairline distal fibula fracture from the first slip. Season over.
Climbed the SW ridge via Black Canyon Lake. Long but gorgeous climb.
This mountain has been the most difficult 12er I've done in Montana. I had perfect weather and summited at 9:30am. The boulder hopping and rock climbing made this summit quite the challenge. On the summit there is a summit log and I was the only one to sign it this year. Actually no one had signed the log register in a few years. I would recommend climbing the mountain earlier in the summer when there is snow covering the glacier moraine. I will submit some routes for this mountain in the near future.