BOULDER, Colo. -

Boulder County sheriff's officials say a 28-year-old man has died after falling an estimated 70 feet in Boulder Canyon onto the roadway below.

The Daily Camera reports (http://bit.ly/UlDD48 ) the man fell from atop the Boulderado rock formation while attempting to secure a rope for other climbers Sunday afternoon. His name wasn't immediately released.

Rescue crews also helped an injured hiker in Boulder County on Sunday. Sheriff's Sgt. Lance Enholm says a 50-year-old man who fell about 30 feet while scrambling over difficult terrain in the Dream Canyon area sustained compound fractures to both legs. He was flown to a Denver hospital.