The body of a 65-year-old rock climber was retrieved by rescue crews late Wednesday afternoon from cliff and rocky terrain on Mount Lemmon. He was identified as David Webster, an avid climber in the area. The cause of death isn't known. 

A hiker in the area who knew Webster saw him earlier in the day and they greeted each other, said Deputy Tracy Suitt, a Pima County Sheriff's Department spokesman.

When the hiker returned to the area, he saw Webster "dangling from a rock," Suitt said.

He called 911 shortly before 1 p.m. and reported the incident, Suitt said.

Fighters with Rural/Metro Fire Department responded to reports that the victim "appeared not to be breathing or conscious," said Battalion Chief Willie Treatch, a Rural/Metro spokesman.

In addition to Rural/Metro, Mount Lemmon firefighters and deputies of the Pima County Sheriff's Department were dispatched to the scene and found the body at milepost 15.8 off the Catalina Highway, near Willow Canyon, Treatch said.

It took rescue crews several hours to retrieve Webster's body from the area.