List of BLM Herd Management Areas

Mustangs on the Saylor Creek HMA, Idaho

Herd management areas (HMA) are lands under the supervision of the United States Bureau of Land Management that are managed for the primary but not exclusive benefit of free-roaming "wild" horses and burros. Each HMA has a set Appropriate Management Level (AML), which is the number of equines the land can sustain. When the population gets too high, some animals are removed and placed for adoption with private owners or sent to long-term holding facilities elsewhere.^[1] Since 1971, about 220,000 horses and burros have been adopted through the BLM.^[2]

The BLM distinguishes between "herd areas" (HA) where feral horse herds existed at the time of the passage of the Wild and Free-Roaming Horses and Burros Act of 1971, and "Herd Management Areas" (HMA) where the land is managed for the benefit of horses and burros, though "as a component" of public lands, which have multiple-uses, not exclusively equine habitat. The BLM assessed herd areas to determine which ones would become HMAs based on whether they had adequate food, water, cover, and space to "sustain healthy and diverse wild horse and burro populations over the long-term." Other areas may contain feral horses but for a number of reasons—including size of herd, habitat, and land ownership—are not currently managed for equines by the BLM.^[3] Additional horses and burros are managed in cooperation with the BLM on 37 Wild Horse and Burro Territories in six states under the auspices of the United States Forest Service.^[4]

Horses under the management of the BLM based on 2013 estimates comprised over 33,000 horses located in 270 separate herd management areas (HMAs) across 10 states. There were also approximately 6,800 burros under BLM management in some states.^[5][6] Numbers can vary significantly from year to year, and as of 1 March 2014 the BLM estimated that there were about 49,209 horses and burros roaming free on BLM-managed lands. This population exceeds the target population of 26,684 that the BLM considers to be the "appropriate management level" (AML). Another 48,447 equines are kept in holding facilities in various locations throughout the west and midwest.^[7] As of 2015 almost half of all the free-roaming horses and burros under the management of the BLM live in Nevada, where there are 83 separate herd management areas.^[2]

Population of free-ranging horses is a concern because, unlike wildlife or livestock, horses are not hunted, do not face significant natural predators, nor are their numbers human-controlled by means of grazing permits. Because of the lack of population control, their numbers can double every four years.^[1]

As of 2015 almost half of all the free-roaming horses and burros under the management of the BLM live in Nevada, where there are 83 separate herd management areas.^[2] Population of free-ranging horses is a concern because, unlike wildlife or livestock, horses are not hunted, do not face significant natural predators, nor are their numbers human-controlled by means of grazing permits. Because of the lack of population control, their numbers can double every four years.^[1] Excess animals are removed from the range and placed in holding facilities where they can be placed for adoption with private owners. Since 1971, about 220,000 horses and burros have been adopted through the BLM.^[2]

Summaries of population by state

State	Comment	HMAs	HMA Acres	Pop. Horses[lower-alpha 1]	Pop. Burros	Total	AML pop	Ref
Arizona	Arizona manages the largest free-roaming burro population in the country. Two Arizona HMAs are for horses, the other seven are for burros, though some burro HMAs have been depopulated and contain no burros at present.	9	2,296,269 acres (929,267 ha)	250-538	3,588	4,126	1,676	[4][6][8]
California	State HMAs include horses descended from ranch estrays, cavalry remounts, Spanish type, and draft types in a few areas, some HMAs have burro populations	22	2,533,722 acres (1,025,361 ha)	3,285; horse AML 1,756	1,506	4,791	2,184	[4][6][9]
Colorado	Colorado adopts about 150 horses and burros a year, runs the Wild Horse Inmate Program (WHIP) to pair prison inmates with Mustangs to train for adoption. Has about 1,000 animals available for adoption at any given time.	4	404,013 acres (163,498 ha)	1,040	0	1,040	812	[6][10]
Idaho	"Idaho's wild horses are descendants of domestic horses that escaped to or were turned out on the public lands prior to passage of the Horse and Burro Act in 1971." Several HMAs contain animals with known descent from Thoroughbred and Quarter Horse stallions turned out in the area.	6	418,268 acres (169,267 ha)	554-775[lower-alpha 2]	0	554-775	617	[6][11]
Montana	Pryor Range originally set aside as a wild horse refuge in 1968, expanded after 1971. BLM partners with the Pryor Mountain Wild Mustang Center located in Lovell, Wyoming. Range has a 100% adoption rate	1	33,187 acres (13,430 ha)	158	0	158	90-120	[6][12][13]
Nevada	Nevada holds just under half of the wild horses and burros managed by the BLM and just under half of the total acreage in the United States managed as HMAs. As of 2013, total population is 20,195 with an AML of 12,700, totals are for horses and burros combined)	83	15,718,630 acres (6,361,100 ha)	18,720	1,431	20,151	12,789	[4][6][14]
New Mexico	BLM Region also manages the regional holding facility in Pauls Valley, Oklahoma. New Mexico has additional free-ranging horses on several Forest Service Wild Horse and Burro territories.	2	28,613 acres (11,579 ha)	120	0	120	83	[4][6][15]
Oregon	Three to five herds are gathered each year, Oregon is home to the Kiger Mustang	17 HMA, 2 USFS territories	2,978,571 acres (1,205,385 ha)	2,674	50	2,724	2,715	[4][6][16][17]
Utah	Two HMAs are also managed for burros. Numbers within each HMA vary from 35 to over 400.	20	4,768,682 acres (1,929,817 ha)	3,245	250	3,495	1,956	[4][6][18]
Wyoming	HMAs managed by Wyoming BLM exclude the Pryor Range, which is managed by BLM in Montana	16	4,768,682 acres (1,929,817 ha)	3,459	0	3,459	3,725	[5][6]
Totals	Total national AML for 2013 was 26,677	270	31,631,362 acres (12,800,758 ha)	33,780	6,825	40,605	26,677

1. Numbers vary from year to year. Not all states separate AML for horses and burros
2. Sources deemed generally reliable provide two very different numbers

List of HMAs

Name	Herd description	Location	Horse Burro	Pop. AML	Ref
Alamo HMA	Descendants of burros abandoned by early prospectors, miners and local rangers. Origins of North African ancestry	Arizona	burro	550	[19]
Big Sandy HMA	Brought by miners in the 1860s, more brought by farmers in the 1870s to breed mules.	Arizona	burro	1000	[20]
Black Mountain (AZ)	Descendants of burros brought by miners in the 1860s. Origins of North African ancestry	Arizona	burro	1,600	[21]
Cerbat HMA	Spanish type, origins disputed. May descend from Spanish mustangs, introduced as early as the 1500s. May also have origins from estrays from explorers in the 1700s or animals abandoned by livestock ranchers in the early 1800s.	Arizona	horse	70	[22]
Cibola-Trigo	Horses of mixed type, probably descended from estray ranch horses circa 1940, includes individuals of Appaloosa type, possibly descended from a known Appaloosa stallion. Burros probably arrived with miners in the mid-1800s.	Arizona/California[lower-alpha 1]	both	240 (horses)	[23]
Harquahala	Descended from pack animals brought to the area in the late 1800s. Originally were to be removed after the 1971 Act was passed, but no funding was provided and today the land is managed to incorporate burros on the land, which is designated as a Special Botanical Area owing to diverse vegetation.	Arizona	burro	70	[24]
Havasu	Arrived with miners about 1858, abandoned as railroads came into the area. Nubian wild ass and Somali wild ass characteristics.	Arizona/California, managed by Arizona BLM	burro	178	[25]
Lake Pleasant	Descended from small pack burros escaped or released in the 1880s and 1890s.	Arizona	burro	478	[26]
Little Harquahala	Abandoned burros in late 1800s formed a free-roaming population but due to assorted issue regarding habitat and conflicts with private landowners, land use plans in the early 1980s prescribed a "zero population" area and all burros have been removed.	Arizona	burro	0	[27]
Painted Rock	Descended from pack and work animals brought into the desert in the late 1800s. Tend to be gray, refined structure. Probable North African ancestry	Arizona	burro	25	[28]
Tassi-Gold Butte	Burros arrived with miners, sheepherders and cattlemen in the late 1800s. Land use planning prescribed the Tassi section as a "zero population" area and all burros have been removed.	Arizona/California	burro	0	[29]
Bitner HMA	Horses believed to have originated from area ranches, colors mostly blacks and bays, some piebald	California	Ranch horse type	horse	15-25	[30]
Buckhorn HMA	Spanish origins originally with additions of ranch stock and strong influence of U.S. Cavalry horses from World War I era.	California/Nevada	horse	59-85	[31]
Carter Reservoir	Spanish phenotype, including many dun horses with primitive markings.	California/Nevada[lower-alpha 2]	horse	25-35	[32]
Chemehuevi HMA	Burros descended from those brought by miners during the 1800s then later abandoned.	California	burro	108	[33]
Chicago Valley HMA	Light saddle horse type, believed to have originated from area ranches	California	horse	12	[34]
Chocolate Mule Mountains HMA	Burros descended from those brought by miners during the 1800s then later abandoned.	Arizona/California[lower-alpha 3]	burro	121	[35]
Coppersmith HMA	Horses originally of Spanish heritage diluted with ranch stock and US Cavalry remounts. Many have phenotypes that resemble Morgans and Quarter Horses.	California	horse	50-75	[36]
Devils Garden Wild Horse Territory HMA	Mixed draft horse and light breed types. Area managed by the United States Forest Service, BLM manages gathers and adoption. Horses with draft horse characteristics, averaging 15–16 hands (60–64 inches, 152–163 cm) and 900–1,200 pounds (410–540 kg) pounds, thought to have descended from horses used on area farms and ranches. Some areas in this HMA are dominated by animals with light horse breed characteristics.	California	horse	325	[37]
Fort Sage	Estray farm and ranch horse ancestry	California/Nevada[lower-alpha 4]	horse	65	[38]
Fox Hog HMA	Mixed light and draft types, some with draft horse characteristics.	California	horse	120-220	[39]
High Rock HMA	Spanish type. Two ranges, East Canyon Home Range and Little High Rock Home Range, managed as one unit but with separate AMLs. Some of the horses in this herd exhibit Spanish Mustang characteristics.	Nevada, but California-managed	horse	30 to 40; East Canyon 48 to 80; Little High Rock	[40]
Lee Flat HMA	Small, gray burros descended from those left behind by miners	California	burro	15	[41]
Massacre Lakes HMA	Horses believed to descend from estray ranch stock	California	Ranch stock	horse	20	[42]
New Ravendale HMA	Estray horses of both light ranch stock and draft type	California	horse	25	[43]
Nut Mountain HMA	Estrayed ranch stock, some pintos as well as black and bay colors	California	horse	30 –55	[44]
Palm Canyon HMA	Estray ranch stock	California	horse	6	[45]
Piper Mountain	Estrays from ranch horse stock and abandoned miners' burros	California	both	17 horses, 82 burros	[46]
Red Rock Lakes HMA	Spanish mustang ancestry diluted by other horse types brought in by ranchers	California	horse	25	[47]
Twin Peaks HMA	Horses originally of Spanish heritage diluted with ranch stock and US Cavalry remounts. Burros from sheepherding operations. Occasionally a few mules are produced due to intermingling of horse and burro herds.	California	Spanish, ranch, miliary; burros, mules	both	448–758 horses 72–116 burros	[48]
Wall Canyon HMA	Estrays from ranch stock	California	Ranch type	horse	15–25	[49]
Waucoba-Hunter Mountain HMA	Small burros thought to have descended from abandoned miners' animals, possibly supplemented by estrays from sheepherding operations	California	burro	11	[50]
Black Mountain (Owyhee ID)	Mixed light saddle type. Some feral horses in Idaho descend from animals turned loose during the Great Depression of the 1930s by local farmers and ranchers. This HMA has horses of good size and conformation due to having released Thoroughbred and Quarter Horse stallions into the herds until 1978. Cavalry remounts also may have been an influence. Wide variety of coat colors, including dun, pinto and Appaloosa.	Idaho	horse	30-60	[51]
Challis HMA	Mixed origins and significant genetic variation in the herd, but overall larger than most wild horses. Size 14–16 hands (56–64 inches, 142–163 cm) and 900–1,000 pounds (410–450 kg). Original stock probably brought into the area about 1870 by miners and ranchers. Domesticated stallions and several breeds of work horses were released into the area. A 2002 study indicated genetic influence from New World Spanish and North American gaited horses. A dendrogram also indicated influence by draft horse and pony genes.	Idaho	horse	185-253	[52][53]
Four Mile HMA	Mixed light saddle type. This HMA has horses of good size and conformation due to Thoroughbred and Quarter Horse stallions having been released into the herds until 1978. Cavalry remounts also may have been an influence. Wide variety of coat colors, including dun, pinto and Appaloosa.	Idaho	horse	37-60	[54]
Hardtrigger HMA (Owyhee)	Mixed light saddle type. The BLM considers the horses managed in this area to be of high quality with good size and conformation due to having released Thoroughbred and Quarter Horse stallions into the herds until 1978. Cavalry remounts also may have been an influence. Wide variety of coat colors, including dun, pinto and Appaloosa.	Idaho	horse	66-130	[55]
Saylor Creek HMA	Mixed light saddle type. Wide range of colors, 14–16 hands (56–64 inches, 142–163 cm), 900–1,000 pounds (410–450 kg) Herd originated from mares from Challis area captured by Mustangers and brought to the area in the early 1960s. A privately owned "registered" stallion was turned loose with the mares and the foals captured in annual roundups until passage of the 1971 Act.	Idaho	horse	30-50	[56]
Sands Basin HMA (Owyhee)	Unspecified	Idaho	horse	60	[6][57]
Pryor Mountains Wild Horse Range	Colonial Spanish horse type, averaging 14 hands (56 inches, 142 cm), compact, often dun-colored with primitive markings.	Montana, northern Wyoming	horse	BLM: 90-120 AML	[58][59]
		Oregon
Adobe Town HMA	Descended from estray ranch horses, many grays and roans.	Wyoming	horse	610-800	[60]
Antelope Hills	Spanish type. Predominantly bay or brown, genetic markers consistent with Spanish Colonial horse breeds.[61]	Wyoming	horse	AML 60-82 adult horses	[61]
Conant Creek HMA	Mixed light saddle type. Geographically contiguous Conant Creek, Dishpan Butte, Muskrat Basin and Rock Creek HMAs are managed individually but with gates left open so horses may migrate freely between them to enhance genetic diversity.	Wyoming	horse	320-536 in four combined HMAs	[62]
Crooks Mountain HMA	Unspecified	Wyoming	horse	65-85	[63]
Dishpan Butte HMA	Mixed light saddle type. Geographically contiguous Conant Creek, Dishpan Butte, Muskrat Basin and Rock Creek HMAs are managed individually but with gates left open so horses may migrate freely between them to enhance genetic diversity.	Wyoming	horse	320-536 in four combined HMAs	[62]
Divide Basin HMA	Mixed light horse type, some gaited. Wide variety of coat colors, origins from multiple domestic horse breeds, many closely related to American gaited horse breeds. Size is 14.2–15.2 hands (58–62 inches, 147–157 cm) weight 750–1,100 pounds (340–500 kg) maximum	Wyoming	horse	415-600	[64]
Fifteenmile HMA	Location of the first recorded wild horse gather on federal rangeland October, 1938	Wyoming	Unspecified	horse	70 - 160 adults	[65]
Green Mountain	Light saddle type. Mostly solid-colored horses, some tobiano pintos. Size 11 to 15 hands (44 to 60 inches, 112 to 152 cm), 750–1,000 pounds (340–450 kg)	Wyoming	horse	170-300	[66]
Little Colorado	Mixed light horse type, some gaited. Solid, mostly dark colors and some grays, origins from multiple domestic horse breeds, many closely related to American gaited horse breeds. Size is 14.2–15.2 hands (58–62 inches, 147–157 cm) weight 750–1,100 pounds (340–500 kg).	Wyoming	horse	69-100	[67]
Lost Creek HMA	Mixed light horse type, Spanish horse ancestry possible. A genetic study in 2010 by Gus Cothran of Texas A&M indicated mixed North American ancestry with high genetic diversity and possibly some, limited Iberian ancestry. Most animals influenced by estray domestic saddle stock. Size 14 to 15 hands (56 to 60 inches, 142 to 152 cm), 800–1,000 pounds (360–450 kg) pounds mature weight.	Wyoming	horse	60-82	[68]
McCullough Peaks HMA	Moderate to large size, wide variety of coat colors, good conformation, quality horse habitat allows horses to stay in good physical condition. Popular HMA for horse adoptions and tourists.	Wyoming	horse	100	[69]
Muskrat Basin HMA	Mixed light saddle type. Geographically contiguous Conant Creek, Dishpan Butte, Muskrat Basin and Rock Creek HMAs are managed individually but with gates left open so horses may migrate freely between them to enhance genetic diversity.	Wyoming	horse	320-536 in four combined HMAs	[62]
Rock Creek HMA	Mixed light saddle type. Geographically contiguous Conant Creek, Dishpan Butte, Muskrat Basin and Rock Creek HMAs are managed individually but with gates left open so horses may migrate freely between them to enhance genetic diversity.	Wyoming	horse	320-536 in four combined HMAs	[62]
Salt Wells HMA	Mixed light horse type, some gaited. Wide variety of coat colors, high percentage palomino and sorrel with flaxen. Origins from multiple domestic horse breeds, many closely related to American gaited horse breeds. Size is 14.2–15.2 hands (58–62 inches, 147–157 cm) weight 750–1,100 pounds (340–500 kg).	Wyoming	horse	251-365	[70]
Stewart Creek	Light saddle type. Wide variety of coat colors, a noticeable number of Appaloosas. Herd has been influenced by routine additions of estray domesticated stock. Size 14 to 15 hands (56 to 60 inches, 142 to 152 cm), 800–1,000 pounds (360–450 kg). Natural gas and uranium produced in the area.	Wyoming	horse	125-175	[71]
White Mountain	Mixed light horse type, some gaitedWide variety of coat colors including roan and "paint", origins from multiple domestic horse breeds, many closely related to American gaited horse breeds. Size is 14.2–15.2 hands (58–62 inches, 147–157 cm) weight 750–1,100 pounds (340–500 kg).	Wyoming	horse	205-300	[72]

1. Managed by BLM in Arizona
2. most land in Nevada but managed by California BLM
3. Managed by California BLM
4. Jointly administered by California and Nevada

Forest Service Territories

Some Forest Service wild horse territories are managed in conjunction with the BLM as Herd Management Areas, some are not. In spite of the title, some "wild horse" territories contain burros. Current territories identified as such by the USFS include the following:^[4][73]

• Big Bear Wild Burro Territory, California
• Big Creek Wild Horse Territory, Utah
• Big Summit, Oregon^[73]
• Black Mountain Wild Horse Territory, California
• Brushy Mountain Wild Horse Territory, California
• Burro Wild Burro Territory, Nevada
• Butler Basin Wild Horse Territory, Nevada
• Caja del Rio Wild Horse Territory, New Mexico
• Cherry Spring Wild Horse Territory, Nevada
• Chicoma, New Mexico^[73]
• Deep Creek, Arizona/New Mexico^[73]
• Devil’s Garden Plateau Wild Horse Territory, California
• Dobbin Summit Wild Horse Territory, Nevada
• Dome, New Mexico^[73]
• Double A, Arizona^[73]
• Ellsworth Wild Horse Territory, Nevada
• Heber, New Mexico^[73]
• Jarita Wild Horse Territory, New Mexico (aka Jarita Mesa)
• Jicarilla Wild Horse Territory, New Mexico
• Johnny, Nevada^[73]
• Kelly Creek Wild Horse Territory, Nevada
• Little Fishlake Wild Horse Territory, Nevada
• McGavin Peak Wild Horse Territory, California††
• Mesa de Las Viegas, New Mexico^[73]
• Mesa Montosa, New Mexico^[73]
• Monitor Wild Horse Territory, Nevada
• Monte Cristo Wild Horse Territory, Nevada
• Mount Moriah, Nevada^[73]
• Murderer's Creek, Oregon^[73]
• Murphy Wash, Nevada^[73]
• North Hills, Utah^[73]
• Northumberland Wild Horse Territory, Nevada
• Paradise Peak Wild Horse Territory, Nevada
• Powell Mountain, Nevada^[73]
• Quinn, Nevada^[73]
• Red Rock, Nevada^[73]
• Saguaro, New Mexico^[73]
• Saline Valley, California^[73]
• San Diego, New Mexico^[73]
• Seven Mile, Nevada^[73]
• Shoshone Wild Horse Territory, Nevada
• Spring Mountains, Nevada^[73]
• Stone Cabin, Nevada^[73]
• Three Sisters Wild Horse Territory, California
• Tierney Wild Horse Territory, Nevada
• Toiyabe Wild Horse Territory, Nevada
• Toquima Wild Horse Territory, Nevada
• White Mountain Wild Horse Territory, California/Nevada

††Current AML is zero, federal land habitat insufficient to support a viable horse population

References

1. "Rangeland and Herd Management". Bureau of Land Management. Retrieved 30 May 2015.
2. "Nevada–Wild Horses and Burros". Bureau of Land Management. Retrieved June 1, 2015.
3. "Herd Management Area and Herd Area Maps by State". Bureau of Land Management. Retrieved 1 June 2015.
4. "Wild Horse and Burro Territories". United States Forest Service. Retrieved 1 June 2015.
5. "Herd Management Areas". Bureau of Land Management. Retrieved 1 June 2015.
6. "Wild and Free-Roaming Horse and Burro populations as of March 1, 2013" (PDF). Bureau of Land Management. March 1, 2013. Retrieved 1 June 2015.
7. Press Release (December 9, 2014). "BLM Approves Third Privately Operated Ecosanctuary for Off-range Wild Horses". Bureau of Land Management. Retrieved 30 May 2015.
8. "Wild Horse and Burro Program". Bureau of Land Management. Retrieved 30 May 2015.
9. "California–Wild Horses & Burros". Bureau of Land Management. Retrieved 1 June 2015.
10. "BLM Colorado's Wild Horse and Burro Program". Bureau of Land Management. Retrieved 1 June 2015.
11. "Idaho's Wild Horse Program". Bureau of Land Management. Retrieved 1 June 2015.
12. "Pryor Mountain Wild Horse Range". Bureau of Land Management. Retrieved 1 June 2015.
13. "Pryor Mountain Wild Horse Range Quick Facts" (PDF). Bureau of Land Management. August 2014. Retrieved 1 June 2015.
14. "Wild Horses & Burros Program". Bureau of Land Management. Retrieved 1 June 2015.
15. "Herd Management Areas, New Mexico" (PDF). Bureau of Land Management. Retrieved 1 June 2015.
16. "Herd Management Areas". Bureau of Land Management. Retrieved 1 June 2015.
17. "Wild Horses". Bureau of Land Management. Retrieved 1 June 2015.
18. "Herd Management Areas". Bureau of Land Management. Retrieved 1 June 2015.
19. "Alamo HMA - WHB Program - BLM Arizona". blm.gov. 22 May 2015. Retrieved 1 June 2015.
20. "Big Sandy HMA - BLM Arizona". blm.gov. 22 May 2015. Retrieved 1 June 2015.
21. "Black Mountain HMA - BLM Arizona". blm.gov. 22 May 2015. Retrieved 1 June 2015.
22. "Cerbat Herd Area". Bureau of Land Management. Retrieved 30 May 2015.
23. "Cibola-Trigo Herd Management Area". Bureau of Land Management. Retrieved 30 May 2015.
24. "Harquahala HA - BLM Arizona". blm.gov. 22 May 2015. Retrieved 1 June 2015.
25. "Havasu HMA - BLM Arizona". blm.gov. 22 May 2015. Retrieved 1 June 2015.
26. "Lake Pleasant HMA - BLM Arizona". blm.gov. 22 May 2015. Retrieved 1 June 2015.
27. "Little Harquahala HA - BLM Arizona". blm.gov. 22 May 2015. Retrieved 1 June 2015.
28. "Painted Rock HA - BLM Arizona". blm.gov. 22 May 2015. Retrieved 1 June 2015.
29. "Tassi-Gold Butte HMA - BLM Arizona". blm.gov. 22 May 2015. Retrieved 1 June 2015.
30. "Bitner Herd Management Area, Wild Horses & Burros, Bureau of Land Management, California". blm.gov. 24 October 2013. Retrieved 4 June 2015.
31. "Buckhorn Herd Management Area, Wild Horse & Burros, Bureau of Land Management California". blm.gov. 24 October 2013. Retrieved 4 June 2015.
32. "Carter Reservoir Herd Management Area (CA-269)". Bureau of Land Management. Retrieved 4 June 2015.
33. "Chemehuevi Herd Management Area, Wild Horses & Burros, Bureau of Land Management California". blm.gov. 24 October 2013. Retrieved 4 June 2015.
34. "Chicago Valley Herd Management Area, Wild Horses & Burros, Bureau of Land Management California". blm.gov. 24 October 2013. Retrieved 4 June 2015.
35. "Chocolate Mule Mountains Herd Management Area, Wild Horses & Burros, Bureau of Land Management California". blm.gov. 24 October 2013. Retrieved 4 June 2015.
36. "Coppersmith Herd Management Area, Wild Horses & Burros, Bureau of Land Management California". blm.gov. 24 October 2013. Retrieved 4 June 2015.
37. "Devils Garden Wild Horse Territory, Wild Horses & Burros, Bureau of Land Management California". blm.gov. 24 October 2013. Retrieved 4 June 2015.
38. "Fort Sage Herd Management Area, Wild Horse & Burros, Bureau of Land Management, California". blm.gov. 24 October 2013. Retrieved 4 June 2015.
39. "Fox Hog Herd Management Area, Wild Horses & Burros, Bureau of Land Management California". blm.gov. 24 October 2013. Retrieved 4 June 2015.
40. http://www.blm.gov/ca/st/en/prog/wild_horse_and_burro/hma-main/CA-264.html
41. http://www.blm.gov/ca/st/en/prog/wild_horse_and_burro/hma-main/HMA-CA-652.html
42. http://www.blm.gov/ca/st/en/prog/wild_horse_and_burro/hma-main/HMA-CA-268.html
43. http://www.blm.gov/ca/st/en/prog/wild_horse_and_burro/hma-main/HMA-CA-243.html
44. http://www.blm.gov/ca/st/en/prog/wild_horse_and_burro/hma-main/HMA-266.html
45. http://www.blm.gov/ca/st/en/prog/wild_horse_and_burro/hma-main/HMA-CA-662.html
46. http://www.blm.gov/ca/st/en/prog/wild_horse_and_burro/hma-main/HMA-CA-656.html
47. http://www.blm.gov/ca/st/en/prog/wild_horse_and_burro/hma-main/HMA-CA-251.html
48. http://www.blm.gov/ca/st/en/prog/wild_horse_and_burro/hma-main/HMA-CA-242.html
49. http://www.blm.gov/ca/st/en/prog/wild_horse_and_burro/hma-main/HMA-CA-265.html
50. http://www.blm.gov/ca/st/en/prog/wild_horse_and_burro/hma-main/HMA-CA-651.html
51. "Black Mountain HMA". blm.gov. 18 March 2015. Retrieved 4 June 2015.
52. "Challis HMA". blm.gov. 12 August 2013. Retrieved 4 June 2015.
53. "Challis Gather 2012". blm.gov. 16 September 2014. Retrieved 4 June 2015.
54. "Four Mile HMA". blm.gov. 18 March 2015. Retrieved 4 June 2015.
55. "Hardtrigger HMA". blm.gov. 18 March 2015. Retrieved 4 June 2015.
56. "Saylor Creek HMA". blm.gov. 18 March 2015. Retrieved 4 June 2015.
57. "Sands Basin HMA". blm.gov. 18 March 2015. Retrieved 4 June 2015.
58. "Colors and Conformation". Pryor Mountain Wild Mustang Center. Retrieved 30 May 2015.
59. http://www.blm.gov/mt/st/en/fo/billings_field_office/wildhorses.html
60. "adobetown". blm.gov. 5 March 2013. Retrieved 4 June 2015.
61. "Antelope Hills HMA". Bureau of Land Management. Retrieved June 1, 2015.
62. "lfo-conant-dishpan-muskrat-rockcrk". blm.gov. 5 March 2013. Retrieved 4 June 2015.
63. "crooksmtn". blm.gov. 5 March 2013. Retrieved 4 June 2015.
64. "dividebasin". blm.gov. 5 March 2013. Retrieved 4 June 2015.
65. "15mile". blm.gov. 5 March 2013. Retrieved 4 June 2015.
66. "greenmtn". blm.gov. 5 March 2013. Retrieved 4 June 2015.
67. "little-colorado". blm.gov. 5 March 2013. Retrieved 4 June 2015.
68. "lostcreek". blm.gov. 5 March 2013. Retrieved 4 June 2015.
69. "mcpeaks". blm.gov. 5 March 2013. Retrieved 4 June 2015.
70. "saltwells". blm.gov. 5 March 2013. Retrieved 4 June 2015.
71. "stewart creek". blm.gov. 5 March 2013. Retrieved 4 June 2015.
72. "white mountain". blm.gov. 20 July 2012. Retrieved 4 June 2015.
73. "Forest Service Wild Horse and Burro Territories" (PDF). Forest Service, U.S. Department of Agriculture Geospatial Service and Technology Center. 2007. Retrieved June 17, 2015.