Crews hike to precarious boulder after Colorado rock slide that closed interstate highway

Crews hike to precarious boulder after Colo. slide

Rock slide closes I-70 in western Colorado; huge boulders litter road, leave holes in bridge

Major rock slide closes I-70 in western Colorado

Major rock slide closes I-70 in W. Colorado; huge boulders litter road, leave holes in bridge

Major slide closes I-70 in western Colorado