Jan 14, 2013 4:16 PM by Associated Press
GRAND CANYON NATIONAL PARK, Ariz. - Authorities are searching for a Colorado woman who's reported missing from a private river trip in Grand Canyon National Park.
Park rangers say the 21-year-old woman from Englewood, Colo., was last seen Friday night at her group's camp near Tapeats Creek on the north side of the Colorado River.
The woman was reported missing Saturday and helicopter and ground crews searched the Tapeats and Deer Creek drainages, Surprise Valley and along the river all weekend.
Ground-based search crews were intensifying their efforts Monday in the Tapeats Creek area.