DENVER, Colo. (AP) — Colorado officials say mudslides caused “extreme damage” to a major interstate, leaving it clogged with boulders and rocks and no word on when it might reopen. Forecasters Sunday warned of the potential for more flash floods across the Rocky Mountain and Great Basin regions. Wildfires across the West have left many hillsides more susceptible to erosion. Interstate 70 in Glenwood Canyon, Colorado, was hit by flash flooding that left lanes in both directions snarled by logs, boulders and other debris from a burn scar left by a 2020 wildfire. Flood watches were in effect for portions of Colorado, Utah Idaho, Montana, Nevada, Oregon and Washington state.