Read "Using Science to Improve the BLM Wild Horse and Burro Program: A Way Forward" at NAP.edu

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Suggested Citation: "Appendix E: Herd Management Areas." National Research Council. 2013. Using Science to Improve the BLM Wild Horse and Burro Program: A Way Forward. Washington, DC: The National Academies Press. doi: 10.17226/13511.

Appendix E

Herd Management Areas

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Suggested Citation: "Appendix E: Herd Management Areas." National Research Council. 2013. Using Science to Improve the BLM Wild Horse and Burro Program: A Way Forward. Washington, DC: The National Academies Press. doi: 10.17226/13511.

TABLE E-1 All Herd Management Areas (HMA) Sorted by Total Estimated Equid Population


Herd Management Area	Species Managed on HMA	Horse AML High^a	Estimated Horse Population	Burro AML High^a	Estimated Burro Population	Total Estimated Equid Population	State

Cibola-Trigo	Both	150	367	285	805	1,172	AZ
Twin Peaks	Both	758	952	116	192	1,144	CA
Pancake	Horses	493	1,005	0	0	1,005	NV
Little Owyhee	Horses	298	936	0	0	936	NV
Adobe Town	Horses	800	886	0	0	886	WY
Black Mountain	Horses	0	0	478	800	800	AZ
Jackson Mountains	Horses	217	660	0	0	660	NV
Antelope Valley	Horses	259	608	0	0	608	NV
Clan Alpine	Horses	979	560	0	0	560	NV
Desatoya	Horses	180	543	0	0	543	NV
Beatys Butte	Horses	250	532	0	0	532	OR
Eagle	Horses	210	522	0	0	522	NV
Wassuk	Horses	165	519	0	0	519	NV
Wheeler Pass	Both	66	328	35	182	510	NV
Spruce-Pequop	Horses	82	508	0	0	508	NV
Buffalo Hills	Horses	314	498	0	0	498	NV
Maverick-Medicine	Horses	276	489	0	0	489	NV
Cedar Mountain	Horses	390	464	0	0	464	UT
New Pass-Ravenswood	Horses	566	459	0	0	459	NV
Pilot Mountain	Horses	415	442	0	0	442	NV
Augusta Mountains	Horses	308	437	0	0	437	NV
Triple B	Horses	518	415	0	0	415	NV
Lake Pleasant	Burros	0	0	208	411	411	AZ
Muskrat Basin	Horses	250	405	0	0	405	WY
Divide Basin	Horses	600	400	0	0	400	WY
Snowstorm Mountains	Horses	140	400	0	0	400	NV
Seven Troughs	Both	156	298	46	88	386	NV
Johnnie	Burros	0	86	108	290	376	NV
Lava Beds	Both	148	340	16	22	362	NV
Salt Wells Creek	Horses	365	360	0	0	360	WY
Alamo	Burros	0	0	160	351	351	AZ
Nevada Wild Horse Range	Horses	500	312	0	38	350	NV
Antelope	Horses	324	349	0	0	349	NV

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Suggested Citation: "Appendix E: Herd Management Areas." National Research Council. 2013. Using Science to Improve the BLM Wild Horse and Burro Program: A Way Forward. Washington, DC: The National Academies Press. doi: 10.17226/13511.

Sand Wash Basin	Horses	362	327	0	0	327	CO
Challis	Horses	253	322	0	0	322	ID
Sulphur	Horses	250	320	0	0	320	UT
Swasey	Horses	100	292	0	0	292	UT
Rock Creek	Horses	250	288	0	0	288	NV
Diamond	Horses	151	287	0	0	287	NV
Fox-Lake Range	Horses	204	285	0	0	285	NV
Calico Mountains	Horses	333	267	0	0	267	NV
Silver King	Horses	128	262	0	0	262	NV
Green Mountain	Horses	300	258	0	0	258	WY
North Stillwater	Horses	205	255	0	0	255	NV
Big Sandy	Burros	0	0	139	250	250	AZ
South Shoshone	Horses	100	250	0	0	250	NV
Callaghan	Horses	237	249	0	0	249	NV
Stone Cabin	Horses	364	246	0	0	246	NV
Diamond Hills South	Horses	22	246	0	0	246	NV
Bible Spring	Horses	60	241	0	0	241	UT
South Steens	Horses	304	229	0	0	229	OR
Roberts Mountain	Horses	150	229	0	0	229	NV
Pine Nut Mountains	Horses	179	218	0	0	218	NV
Fish Creek	Horses	180	215	0	0	215	NV
Granite Range	Horses	258	207	0	0	207	NV
Onaqui Mountain	Horses	210	206	0	0	206	UT
White Mountain	Horses	300	205	0	0	205	WY
Sand Springs West	Horses	49	200	0	0	200	NV
Coyote Lake/Alvord Tules Springs	Horses	390	198	0	0	198	OR
Confusion	Horses	115	188	0	0	188	UT
Piceance-East Douglas Creek	Horses	235	183	0	0	183	CO
Range Creek	Horses	125	179	0	0	179	UT
Gold Butte	Burros	0	0	98	176	176	NV
Diamond Hills North	Horses	37	176	0	0	176	NV
Warm Springs Canyon	Both	175	140	24	34	174	NV
Massacre Lakes	Horses	35	172	0	0	172	CA
Pryor Mountain Wild Horse Range	Horses	120	170	0	0	170	MT
Warm Springs	Both	202	133	25	35	168	OR
Frisco	Horses	60	168	0	0	168	UT
Marietta Wild Burro Range	Burros	0	20	104	144	164	NV

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Suggested Citation: "Appendix E: Herd Management Areas." National Research Council. 2013. Using Science to Improve the BLM Wild Horse and Burro Program: A Way Forward. Washington, DC: The National Academies Press. doi: 10.17226/13511.


Herd Management Area	Species Managed on HMA	Horse AML High^a	Estimated Horse Population	Burro AML High^a	Estimated Burro Population	Total Estimated Equid Population	State

Sheepshead/Heath Creek	Horses	302	161	0	0	161	OR
Bald Mountain	Horses	215	160	0	0	160	NV
Owyhee	Horses	231	156	0	0	156	NV
Little Fish Lake	Horses	39	154	0	0	154	NV
Paisley Desert	Horses	150	146	0	0	146	OR
Kamma Mountains	Horses	77	146	0	0	146	NV
Little Book Cliffs Wild Horse Range	Horses	150	145	0	0	145	CO
Chocolate-Mule Mountains	Burros	0	0	133	144	144	CA
Chemehuevi	Burros	0	0	121	143	143	CA
McCullough Peaks	Horses	140	143	0	0	143	WY
Nightingale Mountains	Horses	63	126	0	17	143	NV
Havasu	Burros	0	0	166	142	142	AZ
Shawave Mountains	Horses	73	140	0	0	140	NV
Rocky Hills	Horses	143	139	0	0	139	NV
Dishpan Butte	Horses	100	139	0	0	139	WY
Goshute	Horses	123	136	0	0	136	NV
Seven Mile	Horses	50	129	0	0	129	NV
Fox Hog	Horses	220	126	0	0	126	CA
Stewart Creek	Horses	175	124	0	0	124	WY
Fifteenmile	Horses	160	122	0	0	122	WY
Conant Creek	Horses	100	123	0	0	123	WY
Red Rock	Both	27	58	49	65	123	NV
Saulsbury	Horses	40	121	0	0	121	NV
Hard Trigger	Horses	130	119	0	0	119	ID
Bullfrog	Burros	0	0	91	118	118	NV
Montezuma Peak	Horses	4	47	0	67	114	NV
Sinbad	Burros	0	0	70	113	113	UT
Centennial	Horses	34	40	0	69	109	CA
Canyon Lands	Burros	0	0	100	104	104	UT
Reveille	Horses	138	101	0	0	101	NV
Montgomery Pass	Horses	80	100	0	0	100	NV
Bordo Atravesado	Horses	60	96	0	0	96	NM
Blue Wing Mountains	Both	36	63	28	32	95	NV

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Suggested Citation: "Appendix E: Herd Management Areas." National Research Council. 2013. Using Science to Improve the BLM Wild Horse and Burro Program: A Way Forward. Washington, DC: The National Academies Press. doi: 10.17226/13511.

Carter Reservoir	Horses	35	95	0	0	95	CA
Conger	Horses	80	91	0	0	91	UT
Cold Spring	Horses	150	90	0	0	90	OR
Buckhorn	Horses	85	88	0	0	88	CA
Muddy Creek	Horses	125	86	0	0	86	UT
Flanigan	Horses	125	80	0	0	80	NV
Garfield Flat	Horses	125	83	0	0	83	NV
Rock Creek Mountain	Horses	86	83	0	0	83	WY
High Rock	Horses	120	78	0	0	78	CA
Lost Creek	Horses	82	77	0	0	77	WY
Antelope Hills	Horses	82	76	0	0	76	WY
Silver Peak	Burros	0	75	6	0	75	NV
Jackies Butte	Horses	150	75	0	0	75	OR
Three Fingers	Horses	150	75	0	0	75	OR
Sand Springs	Horses	200	74	0	0	74	OR
Black Rock Range East	Horses	93	74	0	0	74	NV
Black Rock Range West	Horses	93	74	0	0	74	NV
Crooks Mountain	Horses	85	72	0	0	72	WY
Little Colorado	Horses	100	70	0	0	70	WY
Fort Sage	Horses	29	67	0	0	67	CA
Coppersmith	Horses	75	64	0	0	64	CA
Black Mountain	Horses	60	61	0	0	61	ID
Cerbat Mountains	Horses	90	60	0	0	60	AZ
Four Mile	Horses	60	59	0	0	59	UT
Chloride Canyon	Horses	30	59	0	0	59	UT
Hickison Summit	Burros	0	0	45	57	57	NV
Four Mile	Horses	60	54	0	0	54	ID
Murderers Creek	Horses	35	53	0	0	53	OR
Kiger	Horses	82	51	0	0	51	OR
Goldfield	Burros	0	20	37	30	50	NV
Sand Basin	Horses	64	49	0	0	49	ID
Whistler Mountain	Horses	24	49	0	0	49	NV
Stinkingwater	Horses	80	48	0	0	48	OR
Palomino Buttes	Horses	64	47	0	0	47	OR
Tilly Creek	Horses	50	46	0	0	46	UT
McGee Mountain	Burros	0	0	41	45	45	NV
Pokegama	Horses	50	45	0	0	45	OR

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Suggested Citation: "Appendix E: Herd Management Areas." National Research Council. 2013. Using Science to Improve the BLM Wild Horse and Burro Program: A Way Forward. Washington, DC: The National Academies Press. doi: 10.17226/13511.


Herd Management Area	Species Managed on HMA	Horse AML High^a	Estimated Horse Population	Burro AML High^a	Estimated Burro Population	Total Estimated Equid Population	State

Hog Creek	Horses	50	43	0	0	43	OR
Spring Creek Basin	Horses	65	42	0	0	42	CO
North Hills	Horses	36	40	0	0	40	UT
Saylor Creek	Horses	50	35	0	0	35	ID
Wall Canyon	Horses	25	34	0	0	34	CA
Waucoba-Hunter Mountain	Burros	0	0	11	33	33	CA
Riddle Mountain	Horses	56	33	0	0	33	OR
Tobin Range	Horses	42	32	0	0	32	NV
Nut Mountain	Horses	55	31	0	0	31	CA
Choke Cherry	Horses	30	30	0	0	30	UT
Fish Lake Valley	Horses	54	29	0	0	29	NV
Round Mountain	Horses	10	27	0	0	27	CA
Paymaster	Horses	38	26	0	0	26	NV
New Ravendale	Horses	25	24	0	0	24	CA
Red Rock Lakes	Horses	25	23	0	0	23	CA
Little Humboldt	Horses	80	22	0	0	22	NV
North Monitor	Horses	8	22	0	0	22	NV
Hot Creek	Horses	41	21	0	0	21	NV
Liggett Table	Horses	25	20	0	0	20	OR
Lahontan	Horses	10	20	0	0	20	NV
Stonewall	Burros	0	0	8	19	19	NV
South Stillwater	Horses	16	19	0	0	19	NV
Bitner	Horses	25	15	0	0	15	CA
Mount Elinor	Horses	25	15	0	0	15	UT
Dogskin Mountains	Horses	15	14	0	0	14	NV
Carracas Mesa	Horses	23	12	0	0	12	NM
Granite Peak	Horses	18	11	0	0	11	NV
Kingtop	Horses	40	10	0	0	10	UT
Gold Mountain	Burros	0	8	78	1	9	NV
Chicago Valley	Horses	12	6	0	0	6	CA
Muddy Mountains		0	6	0	0	6	NV
Piper Mountain	Both	17	0	82	0	0	CA
Horse Mountain	Horses	95	0	0	0	0	NV

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Suggested Citation: "Appendix E: Herd Management Areas." National Research Council. 2013. Using Science to Improve the BLM Wild Horse and Burro Program: A Way Forward. Washington, DC: The National Academies Press. doi: 10.17226/13511.

Palmetto	Horses	76	0	0	0	0	NV
Lee Flat	Burros	0	0	15	0	0	CA
Fort Sage	Horses	36	0	0	0	0	NV
Amargosa Valley		0	0	0	0	0	NV
Ash Meadows		0	0	0	0	0	NV
El Dorado Mountains		0	0	0	0	0	NV

^aUpper bound of appropriate management level (AML).

SOURCE: Bureau of Land Management. 2012. Wild Horse and Burro Program Data. Available online at http://www.blm.gov/pgdata/etc/medialib/blm/wo/Planning_and_Renewable_Resources/wild_horses_and_burros/statistics_and_maps.Par.13260.File.dat/HAHMAstats2012Final.pdf. Accessed October 23, 2012.

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Suggested Citation: "Appendix E: Herd Management Areas." National Research Council. 2013. Using Science to Improve the BLM Wild Horse and Burro Program: A Way Forward. Washington, DC: The National Academies Press. doi: 10.17226/13511.

TABLE E-2 All Horse-Only Herd Management Areas Sorted by Population-Size Estimate


Herd Management Area	Horse AML High^a	Horse AML Low^b	Estimated Horse Population	Most Recent Inventory Month-Year	Last Gather Month-Year	State	Sampled

Saylor Creek	50	50	5	Sep-2010	Sep-2010	ID
Chicago Valley	12	0	6	Jan-2011	Oct-2010	CA
Nut Mountain	55	30	6	Jun-2010	Sep-2007	CA
Carter Reservoir	35	25	7	Jun-2010	Sep-2009	CA
Kingtop	40	20	10	Feb-2006	Aug-2000	UT
Carracas Mesa	23	no low	12		Dec-2005	NM
Mount Elinor	25	15	15	Feb-2010	Jan-2011	UT
Fish Lake Valley	54	no low	16	Feb-2010	Feb-2005	NV
Lahontan	10	7	17	Nov-2010	Nov-2010	NV
Hot Creek	41	no low	18	Aug-2007	Dec-2004	NV
Red Rock Lakes	25	16	19	Oct-2010	Feb-2011	CA
South Stillwater	16	8	19			NV
New Ravendale	25	10	20	Nov-2009	Sep-2009	CA
Paymaster	38	23	20	Feb-2010	Oct-2006	NV
Round Mountain	10	0	23		Oct-2009	CA
Liggett Table	25	10	24	Aug-2009	Sep-2009	OR
Tobin Range	42	25	26	Sep-2010	Nov-2009	NV
Dogskin Mountains	15	10	30	Apr-2010	Dec-2005	NV
Choke Cherry	30	no low	30	Dec-2009	Jan-2011	UT
North Monitor	8	no low	31	Sep-2007	Aug-2005	NV
North Hills	36	12	33	Feb-2011	Dec-2010	UT
Fort Sage	29	24	34	Sep-2008	Sep-1998	CA
Hog Creek	50	30	36	Sep-2009	Nov-2009	OR
Four Mile	60	30	36	Mar-2009	Jul-2009	UT
Palomino Buttes	64	32	39	Sep-2005	Dec-2009	OR
Sand Basin	64	33	40	Nov-2009	Oct-2009	ID
Stinkingwater	80	40	40	Jul-2009	Aug-2010	OR
Four Mile	60	37	44	Nov-2009	Oct-2009	ID
Whistler Mountain	24	14	44	Sep-2008		NV
Pokegama	50	30	46	Oct-2004	Jun-2000	OR
Bitner	25	15	48	Jun-2010	Sep-2007	CA
Black Mountain	60	30	48	Nov-2010	Nov-2010	ID
Tilly Creek	50	20	48	Mar-2009	Jul-2010	UT

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Suggested Citation: "Appendix E: Herd Management Areas." National Research Council. 2013. Using Science to Improve the BLM Wild Horse and Burro Program: A Way Forward. Washington, DC: The National Academies Press. doi: 10.17226/13511.

Chloride Canyon	30	15	49	Feb-2011	Sep-2009	UT
Blue Wing Mountains	36	22	51	Nov-2005	Nov-2005	NV	✓
Bordo Atravesado	60	40	51	Jun-2009	Jan-2011	NM
Cerbat Mountains	90	not set	60	Aug-2006	Feb-2001	AZ
Little Humboldt	80	48	66	Apr-2011	Jul-2010	NV	✓
Riddle Mountain	56	33	68	Apr-2010	Oct-2007	OR
Granite Peak	18	11	70	Apr-2010	Jan-2010	NV
Black Rock Range East	93	56	71	Jun-2010	Jan-2010	NV	✓
Bible Spring	60	30	72	Mar-2009	Dec-2010	UT
Muddy Creek	125	30	72	Jun-2009	Jul-2009	UT
Sand Springs	200	100	72	Jun-2010	Sep-2006	OR	✓
Buckhorn	85	59	73	Nov-2009	Dec-2009	CA
Coppersmith	75	50	73	Nov-2009	Dec-2009	CA
Spring Creek Basin	65	35	74	Jun-2010	Aug-2007	CO	✓
Cold Spring	150	75	75	Mar-2010	Jul-2010	OR
Conger	80	40	76	Mar-2011	Sep-2010	UT
Reveille	138	83	76	Feb-2010	Sep-2010	NV	✓
Rock Creek Mountain	86	50	77	Jul-2010	Jul-2009	WY
Montgomery Pass	0	not set	79		Sep-1998	NV
Little Fish Lake	39	no low	85	Aug-2009	Feb-2006	NV	✓
Wall Canyon	25	15	88	Jun-2010	Sep-2007	CA
Hard Trigger	130	66	93	Nov-2010	Nov-2010	ID
Kiger	82	51	100	Apr-2010	Oct-2007	OR	✓
Nightingale Mountains	63	38	101	Nov-2005	Dec-2005	NV
Fifteenmile	160	70	107	Nov-2009	Nov-2009	WY
Garfield Flat	125	75	112	Oct-2009	Oct-2009	NV	✓
Shawave Mountains	73	44	112	Nov-2005	Nov-2005	NV
Goshute	123	74	113	Oct-2010	Feb-2011	NV
Rocky Hills	143	90	113	Nov-2010	Dec-2010	NV	✓
Crooks Mountain	85	65	115	Aug-2010	Aug-2006	WY
Paisley Desert	150	60	117	Nov-2009	Dec-2009	OR	✓
Kamma Mountains	77	46	119	Nov-2005	Dec-2005	NV	✓
Conant Creek	100	60	120	Jul-2010	Jul-2009	WY
McCullough Peaks	140	70	124	Feb-2011	Oct-2009	WY	✓
Little Book Cliffs Wild Horse Range	150	90	135	Jun-2010	Sep-2007	CO	✓
Bald Mountain	215	129	136	Nov-2010	Dec-2010	NV
Frisco	60	12	140	Jan-2010	Aug-2006	UT

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Suggested Citation: "Appendix E: Herd Management Areas." National Research Council. 2013. Using Science to Improve the BLM Wild Horse and Burro Program: A Way Forward. Washington, DC: The National Academies Press. doi: 10.17226/13511.


Herd Management Area	Horse AML High^a	Horse AML Low^b	Estimated Horse Population	Most Recent Inventory Month-Year	Last Gather Month-Year	State	Sampled

Black Rock Range West	93	56	143	Jun-2010	Feb-2010	NV	✓
Diamond Hills North	37	22	145	Mar-2010	Jul-2004	NV
Jackies Butte	150	75	147	Mar-2010	Oct-2007	OR	✓
Massacre Lakes	35	25	149	Jun-2010	Oct-1988	CA	✓
Range Creek	125	75	149	Feb-2010	Jul-2006	UT
Dishpan Butte	100	50	155	Jul-2010	Jul-2009	WY
Lost Creek	82	60	155	Aug-2010	Nov-2009	WY	✓
Confusion	115	70	157	Mar-2010	Sep-2010	UT
Onaqui Mountain	210	121	159	Feb-2010	Oct-2009	UT
Pryor Mountain Wild Horse Range	120	100	159			MT	✓
Granite Range	258	155	160	Jun-2010	Feb-2005	NV
Antelope Hills	82	60	162	Aug-2010	Nov-2009	WY
Seven Mile	50	no low	162	Sep-2007	Aug-2005	NV	✓
Fish Creek	180	108	163	Sep-2007	Feb-2006	NV
Saulsbury	40	24	172	Aug-2009	Feb-2007	NV
Owyhee	231	139	180	Apr-2011	Jul-2010	NV	✓
Pine Nut Mountains	179	118	182	Nov-2010	Dec-2010	NV
Rock Creek	250	83	185	Apr-2011	Jul-2010	NV
South Steens	304	159	191	Jul-2009	Nov-2009	OR	✓
Murderers Creek	35	13	198	Jan-2011	Feb-2011	OR
Eagle	210	126	200	Oct-2010	Jan-2011	NV
Silver King	128	76	200	Sep-2010	Oct-2010	NV	✓
Diamond Hills South	22	no low	202	Mar-2010	Jul-2004	NV
Coyote Lake/Alvord Tule Springs	390	198	212	Jun-2010	Nov-2008	OR
North Stillwater	205	123	214	Jul-2008	Jul-2008	NV	✓
Nevada Wild Horse Range	500	300	216	Sep-2009	Jul-2008	NV
Callaghan	237	147	221	Nov-2010	Jan-2011	NV
South Shoshone	100	60	224	Oct-2009	Jan-2009	NV	✓
Antelope	324	194	239	Oct-2010	Feb-2011	NV
Swasey	100	60	243	Mar-2011	Jul-2007	UT
Diamond	151	91	244	Mar-2010	Jul-2004	NV	✓
Fox-Lake Range	204	122	244	Jul-2008	Jul-2008	NV
Roberts Mountain	150	90	248	Sep-2008	Jan-2008	NV

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Suggested Citation: "Appendix E: Herd Management Areas." National Research Council. 2013. Using Science to Improve the BLM Wild Horse and Burro Program: A Way Forward. Washington, DC: The National Academies Press. doi: 10.17226/13511.

Augusta Mountains	308	185	256	Jan-2011	Feb-2011	NV	✓
Little Colorado	100	69	256	Apr-2010	Dec-2007	WY
Three Fingers	150	75	261	Mar-2010	Aug-2006	OR
Sulphur	250	165	267	Nov-2010	Dec-2010	UT	✓
Sand Wash Basin	362	163	270	Jun-2010	Oct-2008	CO
Challis	253	185	270	Jul-2010	Dec-2009	ID	✓
Stewart Creek	175	125	275	Aug-2010	Nov-2009	WY	✓
Lava Beds	148	89	277	Nov-2005	Dec-2005	NV
Flanigan	125	80	278	Apr-2010	Oct-2006	NV
Sand Springs West	49	29	285	Apr-2008	Jan-2006	NV	✓
Sheepshead/Heath Creek	302	161	293	Jun-2010	Nov-2008	OR
Salt Wells Creek	365	251	300	Sep-2010	Nov-2010	WY
Piceance-East Douglas Creek	235	135	320	Mar-2010	Oct-2010	CO	✓
Snowstorm Mountains	140	90	320	Apr-2011	Oct-2006	NV
Muskrat Basin	250	160	359	Jul-2010	Jul-2009	WY
Cedar Mountain	390	190	362	Feb-2009	Dec-2008	UT	✓
Wassuk	165	109	362	Apr-2010		NV
Centennial	168	134	366	May-2010	Oct-2010	CA
New Pass-Ravenswood	566	no low	396	Nov-2010	Jan-2011	NV	✓
Pilot Mountain	415	249	402	Jan-2011	Jan-2005	NV
Buffalo Hills	314	188	415	Jan-2009	Jan-2009	NV
Beatys Butte	250	100	416	Nov-2009	Sep-2009	OR	✓
Spruce-Pequop	82	49	423	Oct-2010	Feb-2011	NV
Calico Mountains	333	200	450	Jun-2010	Feb-2010	NV
High Rock	120	78	458	Jun-2010	Sep-2006	CA	✓
Stone Cabin	364	218	476	Aug-2009	Feb-2007	NV
Fox Hog	220	120	479	Jun-2010	Aug-2005	CA
Green Mountain	300	170	490	Aug-2010	Oct-2009	WY	✓
Clan Alpine	979	619	503	Dec-2010	Oct-2006	NV
Antelope Valley	259	155	519	Oct-2010	Feb-2011	NV
Desatoya	180	127	520	Apr-2010	Feb-2004	NV	✓
Jackson Mountains	217	130	520	Sep-2007	Sep-2007	NV
White Mountain	300	205	545	Apr-2010	Nov-2007	WY
Maverick-Medicine	276	166	553	Nov-2010	Aug-2006	NV	✓
Adobe Town	800	610	738	Sep-2010	Nov-2010	WY
Little Owyhee	298	194	780	Apr-2011	Nov-2004	NV

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Suggested Citation: "Appendix E: Herd Management Areas." National Research Council. 2013. Using Science to Improve the BLM Wild Horse and Burro Program: A Way Forward. Washington, DC: The National Academies Press. doi: 10.17226/13511.


Herd Management Area	Horse AML High^a	Horse AML Low^b	Estimated Horse Population	Most Recent Inventory Month-Year	Last Gather Month-Year	State	Sampled

Triple B	518	312	1,217	Nov-2010		NV	✓
Pancake	493	296	1,291	Jan-2006		NV
Divide Basin	600	415	1,355	Nov-2009	Sep-2007	WY

^aUpper bound of appropriate management level (AML).

^bLower bound of appropriate management level.

NOTE: The following Herd Management Aeas (HMAs) were removed from Table E-1: All HMAs with zero animals, AMLs of zero, or both; all HMAs with mixed burros and horses; and all burro-only HMAs. All remaining HMAs were numerically ordered by most recent population-size estimate. All HMAs with fewer than 50 horses were excluded. Every third HMA was systematically selected, resulting in 36 HMAs. Four additional HMAs that were used in Eberhardt et al. (1982) and Garrott et al. (1991a) were added to total 40 HMAs sampled.

SOURCE: Spreadsheet and survey request based on information provided to the committee by the Bureau of Land Management in December 2011. To access the spreadsheet, contact the National Research Council’s Public Access Records Office at paro@nas.edu. Referenced articles are included in Chapter 2.

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Suggested Citation: "Appendix E: Herd Management Areas." National Research Council. 2013. Using Science to Improve the BLM Wild Horse and Burro Program: A Way Forward. Washington, DC: The National Academies Press. doi: 10.17226/13511.

TABLE E-3 Surveyed Horse Herd Management Areas Sorted by Population-Size Estimate


Herd Management Area	Horse AML High^a	Horse AML Low^b	Estimated Horse Population	Most Recent Inventory Month-Year	Last Gather Month-Year	State

Blue Wing Mountains	36	22	51	Nov-2005	Nov-2005	NV
Little Humboldt	80	48	66	Apr-2011	Jul-2010	NV
Black Rock Range East	93	56	71	Jun-2010	Jan-2010	NV
Sand Springs	200	100	72	Jun-2010	Sep-2006	OR
Spring Creek Basin	65	35	74	Jun-2010	Aug-2007	CO
Reveille	138	83	76	Feb-2010	Sep-2010	NV
Little Fish Lake	39	no low	85	Aug-2009	Feb-2006	NV
Kiger	82	51	100	Apr-2010	Oct-2007	OR
Garfield Flat	125	75	112	Oct-2009	Oct-2009	NV
Rocky Hills	143	90	113	Nov-2010	Dec-2010	NV
Paisley Desert	150	60	117	Nov-2009	Dec-2009	OR
Kamma Mountains	77	46	119	Nov-2005	Dec-2005	NV
McCullough Peaks	140	70	124	Feb-2011	Oct-2009	WY
Little Book Cliffs Wild Horse Range	150	90	135	Jun-2010	Sep-2007	CO
Black Rock Range West	93	56	143	Jun-2010	Feb-2010	NV
Jackies Butte	150	75	147	Mar-2010	Oct-2007	OR
Massacre Lakes	35	25	149	Jun-2010	Oct-1988	CA
Lost Creek	82	60	155	Aug-2010	Nov-2009	WY
Pryor Mountain Wilde Horse Range	120	100	159			MT
Seven Mile	50	no low	162	Sep-2007	Aug-2005	NV
Owyhee	231	139	180	Apr-2011	Jul-2010	NV
South Steens	304	159	191	Jul-2009	Nov-2009	OR
Silver King	128	76	200	Sep-2010	Oct-2010	NV
North Stillwater	205	123	214	Jul-2008	Jul-2008	NV
South Shoshone	100	60	224	Oct-2009	Jan-2009	NV
Diamond	151	91	244	Mar-2010	Jul-2004	NV
Augusta Mountains	308	185	256	Jan-2011	Feb-2011	NV
Sulphur	250	165	267	Nov-2010	Dec-2010	UT
Challis	253	185	270	Jul-2010	Dec-2009	ID
Stewart Creek	175	125	275	Aug-2010	Nov-2009	WY
Sand Springs West	49	29	285	Apr-2008	Jan-2006	NV
Piceance-East Douglas Creek	235	135	320	Mar-2010	Oct-2010	CO

Page 306 Cite Bookmark

Suggested Citation: "Appendix E: Herd Management Areas." National Research Council. 2013. Using Science to Improve the BLM Wild Horse and Burro Program: A Way Forward. Washington, DC: The National Academies Press. doi: 10.17226/13511.


Herd Management Area	Horse AML High^a	Horse AML Low^b	Estimated Horse Population	Most Recent Inventory Month-Year	Last Gather Month-Year	State

Cedar Mountain	390	190	362	Feb-2009	Dec-2008	UT
New Pass-Ravenswood	566	no low	396	Nov-2010	Jan-2011	NV
Beatys Butte	250	100	416	Nov-2009	Sep-2009	OR
High Rock	120	78	458	Jun-2010	Sep-2006	CA
Green Mountain	300	170	490	Aug-2010	Oct-2009	WY
Desatoya	180	127	520	Apr-2010	Feb-2004	NV
Maverick-Medicine	276	166	553	Nov-2010	Aug-2006	NV
Triple B	518	312	1,217	Nov-2010		NV

^aUpper bound of appropriate management level (AML).

^bLower bound of AML.

SOURCE: Spreadsheet and survey request based on information provided to the committee by the Bureau of Land Management in December 2011. To access the spreadsheet, contact the National Research Council’s Public Access Records Office at paro@nas.edu.