Rounded boulders of granite produced by spheroidal
weathering at Elephant Rock State Park, Missouri.
Each boulder is about 5 feet in diameter.
Photo Album:
breccia at the shut-ins
welded tuff at the shut-ins
students at shut-ins
students on rhyolite
Great Unconformity I
DIP!
students at Elephant Rock
the class on granite
hold that boulder!
on the elephant's back
student wedges
balancing on boulder
Great Unconformity II
observing contact
granite-rhyolite contact
Chuck on dike
John on dike
Shut-in