Correction to Secor, Thunderbolt Peak

by Mark Wallace
We hiked up the Glacier to the foot of the Underhill Couloir.

There are actually two couloirs, a left and a right. We decided to climb the right couloir, which is the more prominent and obvious of the two. Secor reports a chockstone in the middle of the couloir which is bypassed by climbing the wall to the right, but we didn't encounter it. (Maybe it buried in the snow).


The information in these pages is provided by interested volunteers and has not been field checked. R.J. Secor, The Mountaineers and the Sierra Club are in no way responsible for the accuracy of any route advice on this web site. Safe climbers must be able to understand the terrain and topography of the area they travel in, and they must make wise route finding choices based on their own knowledge, experience and observations.