Investigation underway after dead grizzly bear found in northwest MT MTN News and last updated 2021-06-01 15:21:14-04 KALISPELL â Wildlife officials are investigating the discovery of a grizzly bear that was found dead near Polebridge in northwest Montana. The U.S. Fish and Wildlife Service (USFWS) and Montana Fish, Wildlife & Parks (FWP) are investigating the death that happened up the North Fork of the Flathead River. A landowner on Coal Creek Road reported finding the carcass of a grizzly bear near the road on May 18, according to a news release. The subadult male bear, estimated to be two-to-three years old, was wearing a GPS radio collar that was fitted from a previous management capture by FWP.