I hiked up the Teneriffe road trail, taking a left at the 3500 ft junction. At 3800 ft, instead of going left toward Mt Si, there is an overgrown old road going NNE. Following a mile or so of bad road led me to Blowdown Mountain. Not much to see at the summit, being treed over. However, continuing on another ridge NW for less than a mile, I found the peak of Crater Lake Mountain, with some rewarding views.

Total stats for the day were 4000 ft gain, 14 miles, 8:30 hours.