This information is preliminary and is subject to revision. It is being provided to meet the need for timely best science. The information is provided on the condition that neither the U.S. Geological Survey nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the information. Release of information will be limited for mortalities under investigation.

Count	Unique	Sex	Age class	Known Mortality Date	Location	Demographic Monitoring Area	Loss
Part A. Documented known and probable grizzly bear mortalities that occurred during 2020 inside the Demographic Monitoring Area (DMA).
1	202002	M	Adult	4/29/2020	Snake River, PR-WY	Inside	Known, human-caused, management removal for obtaining numerous food rewards, property damage, and entering structures.
2	202003	M	Adult	5/5/2020	North Fork Shoshone, PR-WY	Inside	Known, human-caused, management removal for repeat offenses in developed areas, property damage, and poultry depredations.
3	202011	F	Subadult	6/18/2020	Ghost Crk, SNF-WY	Inside	Known, human-caused, management removal for bold and aggressive behavior towards people.
4	202014	M	Adult	7/3/2020	Fence Crk, BTNF-WY	Inside	Known, human-caused, management removal for cattle depredations.
5	202015	M	Adult	7/3/2020	Grayling Arm-Hegben Lake, CGNF-MT	Inside	Known, human-caused, management live removal for obtaining multiple food rewards and nuisance behavior at a campground and private residences.
6	202018	M	Adult	7/30/2020	Wagon Crk, BTNF-WY	Inside	Known, human-caused, management removal for cattle depredations and poor condition of very old bear.
7	202019	M	Adult	7/30/2020	Park County, PR-MT	Inside	Known, human-caused, management removal for cattle depredations.
8	202021	M	Subadult	8/7/2020	Eagle Crk, SNF-WY	Inside	Known, human-caused, management removal for nuisance activity, habituated behavior, and obtaining multiple food reward at multiple sites.
9	202025	F	Subadult	9/1/2020	Denny Crk, PR-MT	Inside	Known, human-caused, management capture and removal for property damage and obtaining food rewards at multiple residences.
10	202026	M	Subadult	9/1/2020	Denny Crk, PR-MT	Inside	Known, human-caused, management capture and removal for property damage and obtaining food rewards at multiple residences.
11	202028			2020	WY	Inside	Known, Under investigation.
12	202029	F	Adult	9/22/2020	Middle Fork Warm Spring Crk, BDNF-MT	Inside	Known, human-caused, self-defense at remains of cow carcass
13	202030	M	Adult	9/24/2020	Timber Crk, PR-WY	Inside	Known, human-caused, management capture and removal obtaining food rewards at multiple locations.
14	202031			2020	MT	Inside	Known, Under investigation.
15	202032	M	Subadult	9/26/2020	Trout Crk, PR-WY	Inside	Known, human-caused, vehicle strike on US highway 20.
16	202034	F	Subadult	9/26/2020	Madison River, CGNF-MT	Inside	Known, human-caused, vehicle strike on US highway 191.
17	202035			2020	WY	Inside	Known, Under investigation.
18	202036	M	Subadult	9/29/2020	South Fork Shoshone, PR-WY	Inside	Known, human-caused, management capture and removal for obtaining multiple food rewards, aggressive behavior and nuisance activity at multiple residences.
19	202037	M	Adult	9/29/2020	Green River, BTNF-WY	Inside	Known, human-caused, management removal for cattle depredations.
20	202038			2020	ID	Inside	Known, Under investigation.
21	202039	F	Adult	10/4/2020	Sentinel Crk, CGNF-MT	Inside	Known, human-caused, self-defense kill by hunters.
22	202041	U	Cub	10/8/2020	Gallatin River, PR-MT	Inside	Known, human-caused, vehicle strike on US highway 191.
23	202042			2020	WY	Inside	Known, Under investigation.
24	202043			2020	WY	Inside	Known, Under investigation.
25	202044			2020	WY	Inside	Probable, Under investigation.
26	202046	F	Adult	10/4/2020	Indian Crk, BDNF-MT	Inside	Known, human-caused, self-defense kill by hunter.
27	202047	F	Subadult	10/4/2020	Cameron Crk, BDNF-MT	Inside	Known, human-caused, mistaken identity kill by hunter.
28	202049	U	Subadult	10/1/2020	Devils Basin Crk, BTNF-WY	Inside	Known, undetermined cause, remains found and reported by hunter, mortality date is approximate, DNA samples obtained for sex determination.
29	202050			2020	ID	Inside	Known, Under investigation.
30	202051			2020	WY	Inside	Known, Under investigation.
Part B. Documented known and probable grizzly bear mortalities that occurred during 2020 outside the Demographic Monitoring Area (DMA).
1	202001	M	Subadult	4/25/2020	Cottonwood Crk, BOR-WY	Outside	Known, human-caused, management removal for repeated conflicts in developed areas and failed attempts to haze bear away from developments.
2	202004	M	Subadult	5/7/2020	Cottonwood Crk, PR-WY	Outside	Known, human-caused, vehicle strike on state highway WYO-120.
3	202005	M	Subadult	5/9/2020	Cottonwood Crk, BOR-WY	Outside	Known, human-caused, management removal for frequenting developed areas near Cody.
4	202006			2020	WY	Outside	Known, Under investigation.
5	202008	M	Adult	6/7/2020	Wolf Crk, PR-MT	Outside	Known, human-caused, management removal for cattle depredations.
6	202009	F	Adult	6/17/2020	Carbon County, ST-MT	Outside	Known, human-caused, management removal for cattle depredations.
7	202010	M	Adult	6/17/2020	South Fork Owl Crk, PR-WY	Outside	Known, human-caused, management removal for cattle depredations.
8	202012	M	Adult	6/19/2020	Carbon County, PR-MT	Outside	Known, human-caused, management removal for cattle depredations.
9	202013	M	Subadult	6/20/2020	South Fork Dry Crk, PR-WY	Outside	Known, human-caused, vehicle strike on state highway WYO-120.
10	202016	M	Subadult	7/12/2020	Stillwater County, PR-MT	Outside	Known, human-caused, management removal for cattle depredations.
11	202017	F	Subadult	7/23/2020	Carbon County, PR-MT	Outside	Known, human-caused, management removal for cattle depredations.
12	202020	F	Subadult	8/2/2020	South Fork Shoshone, PR-WY	Outside	Known, human-caused, management removal for nuisance activity, habituated behavior, and obtaining multiple food reward private residences.
13	202022	F	Subadult	8/28/2020	Elk River, BDNF-MT	Outside	Known, human-caused, self-defense in sheep camp.
14	202023	F	Adult	8/29/2020	Blaine Crk, PR-WY	Outside	Known, human-caused, management removal for cattle depredations.
15	202024	F	Subadult	8/30/2020	Blaine Crk, PR-WY	Outside	Known, human-caused, management removal for cattle depredations.
16	202027	M	Subadult	9/1/2020	South Fork Owl Crk, PR-WY	Outside	Known, human-caused, management removal for sheep depredations.
17	202033	M	Subadult	9/26/2020	Carbon County, PR-MT	Outside	Known, human-caused, management removal for cattle depredations.
18	202045	F	Subadult	10/19/2020	Horse Crk, BLM-WY	Outside	Known, human-caused, management removal for habituated behavior and property damage.
19	202048	M	Adult	11/4/2020	Pat O'Hara Crk, PR-WY	Outside	Known, human-caused, management removal for property damage and obtaining multiple food rewards.
Part C. Documented known and probable grizzly bear mortalities found during 2020 that occurred in years prior to 2020.
1	202007			2019	WY	Inside	Known. Under investigation.
2	202040	F	Adult	Summer/Fall 2019	Trout Crk, YNP	Inside	Known, undetermined cause, remains found by YNP staff, samples for DNA collected.

Known mortality - a carcass is in hand; Probable mortality - evidence strongly suggests a mortality has occurred but no carcass is recovered. Abbreviations: BOR = Bureau of Reclamation; BLM = Bureau of Land Management; BTNF = Bridger-Teton National Forest; COY = cub-of-the-year; CTNF = Caribou-Targhee National Forest; GNF = Gallatin National Forest; GTNP = Grand Teton National Park; IDFG = Idaho Fish and Game; MTFWP = Montana Fish, Wildlife and Parks; PR = private land; ST= state owned land; SNF = Shoshone National Forest; UNK = Unknown; WRIR = Wind River Indian Reservation; WYGF = Wyoming Game and Fish; YNP = Yellowstone National Park.