A us-regions backcountry guide has died after he was mauled by a large grizzly bear that was probably defending a nearby moose carcass just outside Yellowstone National Park, officials said Monday.

Charles “Carl” Mock, 40, who lived in the park gateway community of West Yellowstone, died Saturday, two days after he was attacked while fishing alone in a forested area along the Madison River several miles north of West Yellowstone, Gallatin County Sheriff’s Office spokesperson Christine Koosman said.


The male bear was later shot and killed when it charged wildlife workers investigating the attack.

The moose carcass was found about 50 yards (45 meters) from the site of the attack, said Montana Fish, Wildlife and Parks spokesperson Morgan Jacobsen.

Mock, who suffered significant scalp and facial wounds, managed to call 911 after the attack and was found after searchers looked for him for about 50 minutes.

He was transported by toboggan and snowmobile to an ambulance before being taken to a hospital in the small city of Idaho Falls, where he died, according to the sheriff’s office.

Mock was a guide at wild-nature” target=”_blank”>Backcountry Adventures< has more than 700 bears. Attacks on humans are relatively rare but increased in recent decades as the grizzly population grew.

Grizzlies bears have been federally protected as a threatened species outside Alaska since 1975 after being widely exterminated by trappers and hunters early last century.

Hunting grizzlies is not allowed. But lawmakers from us-regions, Montana and Wyoming are trying to force wildlife officials to lift protections so the bears can be hunted.