Rescue teams are searching for three people reported missing after a large mudslide struck in western Colorado's Mesa County.
The slide hit Sunday in a remote area near the town of Collbran, about 40 miles east of Grand Junction.
Rescuers raced to the scene when it was reported around 6 p.m. MDT, but eased operations after nightfall, Mesa County Sheriff's spokeswoman Lisa McCammon said.
There's "not a lot of activity tonight," she said. The "slide area is very unstable." She said a daylight search was safer.
The department estimated the slide is about 4 miles long, 2 miles wide and about 250 feet deep in many places.
"This slide is unbelievably big," Mesa County Lt. Phil Stratton said.