An Indiana woman has pleaded guilty to climbing Mt. Rushmore, which is a federal offense. 21-year-old Molly Venderley entered her plea in a Rapid City federal court Monday. For her guilty plea, two other misdemeanor charges were dropped. She was fined $1,250 for the incident which occurred last Sunday. Park Rangers spotted Venderley climbing in the dark. She admitted to climbing in the dark because it was harder to see her and the park was closed.