TELLURIDE, Colo.-- Authorities have entered their third day of searching for two boys who disappeared while one boy's father and the other boy's stepfather were rock climbing in western Colorado.

The San Miguel County Sheriff's Department says the boys accompanied the adults to a rural area Sunday and the adults started climbing at about 11 a.m.

When the adults returned to their pickup about five hours later, the boys and the pickup were gone.

Investigators identified the boys as 12-year-old Christopher Ihinger and 14-year-old Danny Eberly, both of Telluride. The names of the adults haven't been released.