How to vote for Fat Bear WeekCreate a free account with NBC 5 DFW to save articles and videos. There are about 2,200 brown bears within Katmai, a 6,562-square-mile park on the Alaska Peninsula, which extends from the state’s southwest corner toward the Aleutian Islands. A dominant mother bear in Alaska's Katmai National Park and Preserve received 108,321 votes in the final bracket of of “Fat Bear Week.”Voting is not all about weightThe brown bears at Katmai are among the largest in the world. Mike Fitz, a naturalist for explore.org who started the Fat Bear Contest at Katmai when he was a ranger there, said that the only bears that are bigger are on nearby Kodiak Island. Brooks Falls is famous for brown bears snagging salmon out of the air as the fish try to jump upstream to get to their spawning ground.