The
previous map showing the geology of the Kennecott area indicates the presence of
several rock glaciers. The one most commonly seen is this one behind the
Kennecott mill site. When walking up the trail on the way to the Bonanza mine
there is a particularly spectacular view of it. These features are approximately
forty percent ice with the remainder being crushed rock. They act in the same
manner as piedmont glaciers, advancing very slowly, and also receding at a much
slower pace.
BELOW: Rock glacier on the opposite side of Bonanza Ridge from the photo
above as seen from the abandoned Green Butte upper camp looking west:
These two opposing rock glaciers can be prominently seen on the infra-red map
below between "Kennecott" (the mill site) and "GB" (Green Butte mine). Click any
image for a larger one. Continue