COTOPAXI, Colo. (AP) _ A large black bear attacked and killed a logger in his small trailer, then returned several times to eat the body, authorities said Friday.

State Division of Wildlife officials said cases of a black bear killing a human are rare, though bears have been known to eat the remains of people who died in the wilderness.

However, evidence at the scene, about 100 miles southwest of Denver, indicated the bear killed Colin McClelland, 24, of Buena Vista, said Fremont County sheriff's investigators. An autopsy was scheduled Saturday.

''It is really unusual, but more unusual is the attack. ... It appeared the initial attack took place inside that trailer,'' said sheriff's Lt. Dale Rea.

The bear returned and fed on the remains at least three times, Rea said.

McClelland was last seen alive at his timber cutting camp on Waugh Mountain Aug. 4. People returning to the camp Thursday found his remains 30 yards from the trailer.

State wildlife officials hope to trap the bear. A bear last killed a man in Colorado in 1971, according to state records.

In Southern California, three Boy Scouts and a boy on a camping trip were injured in two separate bear attacks last week in the San Bernardino Mountains.