The main lateral moraines that extend from the mouth of the canyon are continued in straggling masses along the walls.

Tracing the streams back to the highest of its little lakes, I noticed a deposit of fine gray mud, something like the mud corn from a grindstone.

This suggested its glacial origin, for the stream that was carrying it issued from a raw-looking moraine that seemed to be in process of formation.
It is from sixty to over a hundred feet high in front, with a slope of about thirty-eight degrees.

Climbing to the top of it, I discovered a very small but well-characterized glacier swooping down from the shadowy cliffs of the mountain to its terminal moraine.

The ice appeared on all the lower portion of the glacier; farther up it was covered with snow.
The uppermost crevasse or "bergeschrund" was from twelve to fourteen feet wide.