A father and his 13-year-old son were rescued late Sunday night after they became lost while trying to descend Longs Peak in Rocky Mountain National Park.

The man and his son — who are from Loveland — climbed Longs Peak via the Keyhole Route and then attempted to come down from the summit through Clark’s Arrow. But the two got off route while on the Loft between Longs Peek and Mount Meeker.

Rocky Mountain National Park search crews reached the two at 10:40 p.m. and assisted them down the Loft to a backcountry shelter near Chasm Lake at 2 a.m. today.

They stayed overnight and began hiking out this morning. They were expected to reach the Longs Peak trailhead by about 10:30 a.m.

Mitchell Byars: 303-473-1329, byarsm@dailycamera.com or twitter.com/mitchellbyars.