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Bear Management
in Yellowstone National Park


The purpose of bear management areas is to reduce human impacts on bears in high-density grizzly bear habitat. Eliminating human entry disturbance in specific areas prevents human/bear conflicts and provides areas where bears can pursue natural behavioral patterns and other social activities free from human disturbance. Types of restrictions include: area closures, trail closures, a minimum party size of four or more people, and travel limited to daylight hours or to established trails.




Bear Management Image Map
Click on a Bear Management Area for more Information

Bear Management Area Map Yellowstone National Park - NPS Image Bear Management Area A Firehole Area Bear Management Area A1 Mary Mountain Trail Bear Management Area B Richards Pond Bear Management Area C Gneiss Creek Bear Management Area D Gallatin Bear Management Area E Blacktail Bear Management Area F Washburn Bear Management Area G Antelope Bear Management Area H Mirror Plateau Bear Management Area I Pelican Valley Bear Management Area J1 Clear Creek 1 Bear Management Area J2 Clear Creek 2 Bear Management Area K Lake Spawn Bear Management Area L Two Ocean Bear Management Area M Riddle/Solution Bear Management Area N Grant Village Bear Management Area O Heart Lake

Firehole Area and Mary Mountain Trail


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A. Firehole Area (includes Firehole Freight Road and Firehole Lake Drive) (gif map or pdf map) is closed March 10 through the Friday of Memorial Day weekend. The Mary Mountain Trail (A1) (gif map or pdf map), from the Nez Perce trailhead to Mary Lake, is closed March 10 through June 15. Through travel from the Canyon trailhead is not allowed, however, travel is allowed from the Canyon trailhead to Mary Lake and back. Streamside use is allowed from the point where Nez Perce Creek crosses the main road to a point one mile upstream along Nez Perce Creek.




Richards Pond


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B. Richards Pond (gif map or pdf map): Area is closed March 10 through the Friday of Memorial Day weekend. From the Saturday of Memorial Day weekend through September 30, Duck Creek, from the park boundary upstream to the Campanula Creek/Richards Creek fork, is open to streamside travel. The area upstream from Campanula Creek/Richards Creek fork is closed from March 10 through September 30.




Gneiss Creek


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C. Gneiss Creek (gif map or pdf map): Area is closed March 10 through June 30. From July 1 through November 10, travel is allowed only on designated trails (off-trail travel is prohibited).




Gallatin


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D. Gallatin (gif map or pdf map): From May 1 through November 10, travel is allowed only on designated trails (off-trail travel is prohibited). A minimum group size of four or more is recommended for hiking and camping.




Blacktail


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E. Blacktail (gif map or pdf map): Area is closed march 10 through June 30.




Washburn


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F. Washburn (gif map or pdf map): Area is closed August 1 through November 10. From March 10 through July 31, the area is open by special permit only. Contact the Tower Ranger Station for permit information.




Antelope


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G. Antelope (gif map or pdf map): Area is closed March 10 through November 10. The Dunraven Road and related turnouts are open. From May 25 through November 10, foot travel is allowed on the old Road Trail from Tower Falls campground to the Buffalo Picnic Area.




Mirror Plateau


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H. Mirror Plateau (gif map or pdf map): From May 15 through November 10, the area is open to day use only with the exception that from July 1 through August 14 overnight camping is permitted for a combined total of 14 nights per summer at the 301 and 5P7 campsites.




Pelican Valley


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I. Pelican Valley (gif map or pdf map): Area is closed April 1 through July 3. From July 4 through November 10 the area is open to day use only between the hours of 9 a.m. and 7 p.m.




J1. Clear Creek 1


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J1. Clear Creek 1 (gif map or pdf map): Area J1 - From April 1 through August 10, travel is only allowed on the east shore from Nine-mile trailhead to Park Point. All other trails are closed and off-trail travel is prohibited. Campsite 5H1 is open (no travel from site). On August 11, all the campsites are open and off-trail travel is permitted.




J2. Clear Creek 2


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J2. Clear Creek 2 (gif map or pdf map) - From April 1 through July 14, travel is only allowed on the east shore trail from Park Point to Beaverdam Creek. All other trails are closed and off-trail travel is prohibited. Open campsites are 5E2, 5E3, 5E4, and 5E6 (no travel away from campsite). All other campsites are closed. On July 15, all campsites open and off-trail travel is permitted.




Lake Spawn


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K. Lake Spawn (gif map or pdf map): From May 15 through July 14, no off-trail travel allowed and the trail between cabin Creek and Outlet Creek is closed. Open campsites are 7L5, 7L6, 7L8, 7L7, 7M3, 7M4, 7M5, 6A3, 6A4 and 6B1 (no travel away from campsite). Only July 15 all campsites open and off-trail travel is permitted.




Two Ocean


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L. Two Ocean (gif map or pdf map): From March 10 through July 14 and August 22 through November 10, travel is allowed only on designated trails (off-trail travel is prohibited). From July 15 through August 21, a permit is required for persons wishing to travel away from designated trails. Contact the South Entrance ranger Station for permit information.




Riddle / Solution


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M. Riddle / Solution (gif map or pdf map): Area is closed April 30 through July 14.




Grant Village


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N. Grant Village (gif map or pdf map): Campground opens June 20 or earlier if bear use of the area spawning streams is over prior to that time. If bears are still frequenting the spawning stream after June 20, the campground loops adjacent to the streams will remain closed until bear activity ceases. Campground closes October 16.




Heart Lake


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O. Heart Lake (gif map or pdf map): Area is closed April 1 through June 30.







Grizzly Bears in the Yellowstone Ecosystem Removed From Threatened Species Status


On April 30, 2007, after more than 30 years of receiving special protection, the U.S. Fish and Wildlife Service (USFWS) removed grizzly bears in the Greater Yellowstone Area (GYA) from threatened species status. The grizzly bear was listed as a threatened species under the Endangered Species Act (ESA) in 1975 because of unsustainable levels of human-caused mortality, loss of habitat, and significant habitat alteration. Since then, with state and federal public land and wildlife managers as well as non-government organizations working together for the conservation of grizzly bears and their habitat, the species has made a remarkable recovery, probably one of the greatest conservation successes in the history of the United States.


In the GYA, grizzly bear cub production and survival have been high in recent decades and human-caused mortality has been kept at sustainable levels, allowing the population to increase from an estimated 136 bears in 1975 to approximately 600 bears in 2007. In addition, grizzly bears have expanded the range they occupy by over 48% in the last two decades.


Although grizzly bear recovery is a great success story, removal from threatened species status does not mean that grizzly bear monitoring and protection of bear habitat will no longer be a priority. The grizzly bear population will likely always need to be closely monitored and carefully managed, including efforts to control human-caused mortality. Prior to delisting, the state and federal managers responsible for managing the grizzly bear population and habitat in the GYA completed a Conservation Strategy for the Grizzly Bear in the Greater Yellowstone Area. The document will guide grizzly bear management by state and federal agencies that manage grizzly bears or their habitat in the Greater Yellowstone Area. The plan describes the agencies coordinated efforts to manage the GYA grizzly bear population and its habitat to ensure its continued conservation. It specifies the population, habitat, information and education, and nuisance bear standards necessary to maintain a recovered grizzly population for at least the next century.




Bear Activity


There were 2,514 bear sighting and sign reports recorded in Yellowstone National Park in 2007. These reports included 1,527 observations of grizzly bears, 673 observations of black bears, and 39 observations where the species of bear could not be determined. In addition, there were 142 observations of grizzly bear sign (tracks, feeding sites, rub trees, dens, etc.), 7 observations of black bear sign, and 126 observations of bear sign where the species of bear could not be determined. The first observed grizzly bear activity in 2007 was a track in the snow observed in the Firehole River drainage on March 5th. The first grizzly bear observation of the year was a sighting of an adult grizzly bear bedded down in the Indian Creek drainage on March 6th. The first observed sighting of a sow grizzly bear with cubs was in the east-central portion of the park on May 14th, the sow had 3 cubs-of-the-year with her. The last observed grizzly bear activity of the year was of a grizzly bear walking down the middle of the road just north of Biscuit Basin in the Old Faithful area on November 25th. The first observed black bear activity of the year was of an adult black bear walking towards a freshly killed elk carcass at Rainy Lake on March 16th. The last observed black bear activity of the year was of a black bear cub-of-the-year observed in the Old Faithful developed area on November 25th.


In areas like Yellowstone National Park where bears and people come into frequent, benign contact and there are few human-caused bear mortalities, bears will habituate to people. Habituation has been defined as the waning of an animals flight response following repeated exposure to inconsequential stimulus. Habituation also allows bears to access and utilize habitat in areas with high levels of human activity. In Yellowstone National Park, human-habituated behavior by bears is most often observed along park road corridors. When habituated bears are present along roadside corridors during daylight hours, hundreds of visitors may stop along the road to view and photograph the bears, causing traffic congestion; these incidents are referred to as bear-jams. In 2007, 822 bear-jams were reported. Grizzly bears were involved in 380 of the bear-jams, and black bears in 434. The species of bear was not identified in 8 bear-jams.




Cub Production


At least 14 distinct females with home ranges either wholly or partially within Yellowstone produced cubs in 2007. The 14 females produced at least 33 cubs. Average litter size in Yellowstone was 2.4 cubs per litter. There were 2 one-cub litters, 5 two-cub litters, and 7 three-cub litters observed. Some of the females observed with cubs in the park in 2007 had home ranges entirely within the boundaries of YNP, while others likely had home ranges that overlapped the park boundary.




Bear Mortality


Due to the grizzly bears low reproductive rate and vulnerability to human-caused mortality, it is important for the conservation of bears to keep mortalities at a sustainable level. The number of grizzly bear cubs produced in Yellowstone National Park 2007 exceeded the number of human-caused grizzly bear mortalities that occurred in the park. In 2007, there were 2 known grizzly bear mortalities due to natural causes and 1 grizzly bear management removal in which the bear was sent to a research facility (Bear Mortality Table). Additionally, there was 1 black bear mortality due to natural causes and 1 black bear mortality due to a collision with a vehicle.




Marooned Yearling Grizzly Bear Survives


In late June of 2005, two yearling grizzly bears that appeared to be marooned on Stevenson Island in Yellowstone Lake were captured and taken by boat to the mainland where they were released. The yearlings appeared to have been marooned on the island after their mother abandoned them and swam for shore. In mid-October of 2007, one of the yearlings was recaptured at Flat Mountain Arm of Yellowstone Lake during a research trapping effort, proving that at least one of the two marooned yearlings had survived.


In early June of 2005, the Lake Queen II tour boat observed an adult female and two yearlings on Stevenson Island. The family group had probably walked over the ice to the island while the Lake was still frozen. Bear Management Office staff investigated the shore of the island and found numerous tracks and scats of an adult grizzly bear and at least two yearlings. The age and quantity of the scats and tracks indicated that the bear family group had likely been on the island prior to the ice breaking up on Yellowstone Lake on May 23rd. When the ice broke up the bears had likely become stranded. Bear Management staff placed a bait station and tracking pit on the northwest end of the island to determine if the bears were still present. When the bait station/tracking pit was revisited, tracks of two yearlings but no adults were found, suggesting that the adult female may have swum for the mainland abandoning the two yearlings. Due to their small size, the two yearlings may have been afraid to swim the 1.4 miles to the nearest mainland shore at Gull Point or Sand Point.


Although plenty of succulent vegetation existed for the bears to graze, the types and quantity of late summer and fall bear foods were scarce on the small 105 acre island; if the bears remained on the island they would likely starve to death. In 1984, an adult female grizzly bear and three cubs-of-the-year were found starving to death on Frank Island. One of the cubs died of malnutrition; the adult female and remaining two cubs were captured by Bear Management staff and relocated to the mainland. In 2001, a yearling grizzly bear was found stranded on Dot Island. Evidence indicated that the yearlings mother had been present on the island but had swum back to the mainland leaving the yearling stranded. The yearling was captured and transported to the mainland to give it a better chance of survival. Due to the grizzly bears status as a Threatened Species (grizzly bears were not delisted until 2007) and the likelihood that the pair of yearlings would starve to death if left on Stevenson Island (based on the Frank Island incident), the decision was made not to let nature take its course and instead to capture the yearlings and relocate them to the mainland where their chances of survival would be higher.


To make certain the mother bear was not on the island, several bait stations with remote cameras were set up on the island. The cameras captured photos of two yearlings but no adult bear, at the bait stations. Three traps were set, but both yearlings were caught in one trap. The yearlings were given meat and water and left in the trap overnight surrounded by remote cameras aimed at the trap in another attempt to determine if the mother bear was still present on the island. With the cubs periodically bawling from inside the trap, the mother was certain to come to their aid and be caught on camera if she was still on the island. When the mother did not show up at the trap, the yearlings were immobilized and fitted with ear-tag transmitters, a pit tag, and a tattoo. Both yearlings were females and weighed 71 and 76 pounds, respectively. The yearlings were slightly underweight for their age, but healthy. We estimated their chances of survival at 50% and as high as 80% if they rejoined their mother on the mainland. In a final effort to determine if the adult female was still on the island, the entire island was hiked and searched by Bear Management Office staff. Numerous scats, tracks, and day-beds were found, but the adult female bear was not on the island. The yearlings were allowed to recover from the immobilization drug, then transported by landing craft to Charcoal Bay of the South Arm of Yellowstone Lake where they were released. The bears were last observed grazing together just above the beach at Charcoal Bay. They were monitored by telemetry for the rest of the summer and based on their movements were thought to have survived the summer and fall. By late fall both bears had lost their transmitters and could no longer be monitored.


In mid-October of 2007, the Interagency Grizzly Bear Study Team captured one of the yearlings in a research trap aling Flat Mountain Arm of Yellowstone Lake. The now three-year-old bear was identified from the lip tattoo applied when the bear was rescued from exile on Stevenson Island. She was slightly small in body size for a three year old bear and weighed only 176 pounds, but she had a layer of fat and was generally healthy. We do not know if her sibling has survived. Maybe someday her sibling will be recaptured as well. Park staff has the satisfaction of knowing that their efforts to rescue the bear had paid off and at least one of the marooned yearlings is now known to have survived.




Female With Four Cubs Observed Near Dunraven Pass


The average litter size for grizzly bears in the Yellowstone Ecosystem is approximately 2 cubs per litter. Litters of one, two, and three cubs are common. It is extremely rare to see litters of four cubs in Yellowstone, although litters of 4 have occasionally been documented. In mid-August, 2007 a female with four cubs was observed in the Antelope Creek/Dunraven Pass area of Yellowstone National Park. The Parks Bear Management Office believes the female adopted two of the cubs. Throughout the summer of 2007, there was a highly habituated unmarked female grizzly bear with two cubs observed along the road in the Antelope Creek drainage. This family group was first observed in late May and was photographed by hundreds of park visitors at roadside bear-jams throughout June, July, and early August. There was also a 24-year old radio collared female grizzly bear (#125) with three cubs whose home range encompasses the Antelope Creek drainage. Grizzly bear #125 is not habituated to people and was not observed as frequently as the habituated female with two cubs. Grizzly Bear #125 was observed multiple times both from the ground and during radio telemetry flights from fixed-wing aircraft. Grizzly Bear #125 had three cubs each time she was observed in June and July. On August 12th the unmarked, habituated female was observed with four cubs instead of two cubs. From the size and color of the cubs, it appeared that the adult female had her original two cubs plus two additional cubs. The unmarked habituated female was observed with the four cubs numerous times between August 12 and September 13. During a telemetry flight on August 16, radio marked grizzly bear #125 was observed with only one cub.


Although circumstantial, the evidence suggests that the habituated female likely adopted two of radio collared Grizzly Bear #125s cubs. The home ranges of both adult females over-lapped. The unmarked habituated female with two cubs gained two additional cubs about the same time that radio marked Grizzly Bear #125 lost two of her cubs. To determine if the adopted cubs belonged to Grizzly Bear #125, the Bear Management Office set up a hair snare with a remote camera in the area commonly frequented by the unmarked habituated female with the four cubs and successfully collected hair samples from the family group. The IGBST already has hair samples on file from radio collared female Grizzly Bear #125. DNA analysis of these hair samples will be used to determine if the adopted cubs came from Grizzly Bear #125, and if the unmarked habituated female is one of Grizzly Bear #125s offspring from a previous litter. Female offspring commonly establish home ranges within and adjacent to their mothers home range.


The details of the circumstances that led to the adoption may never be known. Possibly grizzly bear #125 and the habituated female crossed paths while foraging, maybe the five cubs played or otherwise interacted, and, upon leaving two of #125s cubs followed the wrong mother. Possibly Bear #125 and her three cubs had an encounter with a pack of wolves or an adult male grizzly bear (both known to kill cubs) and the family group scattered during the interaction and two of the cubs became separated and later were adopted by the unmarked habituated female. Regardless, the female grizzly bear with four cubs was viewed, photographed, and enjoyed by thousands of awestruck park visitors as the bears foraged, played, and nursed on the slopes of Mount Washburn during the late summer and early fall.




Safety Message


Park visitors should be aware that all bears are potentially dangerous. Park regulations require that people stay at least 100 yards from bears (unless safely in your car as a bear moves by). Bears need your concern not your food. It is against the law to feed any park wildlife, especially bears. In areas like Yellowstone National Park where there are very few human-caused bear mortalities, bears will learn that people are not a threat and will tolerate people at close distances. This behavioral response is referred to as habituation. To ensure that you do not put yourself or habituated bears at risk, please follow these guidelines when viewing or photographing roadside bears:


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Do not stop your car in the roadway to view or photograph roadside bears. Park in established turnouts and make sure your car is completely off of the paved roadway.


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Make sure you put your vehicle into park, and engage your parking brake.


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For your safety, view or photograph bears from your vehicle. If you exit your vehicle, stay near your vehicle so that you can get inside if the bear approaches. There is no guarantee of your safety if you stop your vehicle to view bears, especially if you exit your vehicle.


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Avoid being struck by a moving vehicle, do not stand in the roadway while viewing or photographing bears.


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Maintain a safe distance, at least 100 yards from bears.


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Never surround, crowd, approach or follow bears.


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Dont block the bears line of travel.


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Do not run or make sudden movements, this may cause bears to attack.


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Watch other people in the area, are they putting you in danger?


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Do not feed bears.


For visitors venturing into the park backcountry for a day or overnight hike, safety can be enhanced by hiking and camping in groups of three or more people, restricting your hiking only to the late morning and early afternoon hours, staying on designated hiking trails, carrying EPA approved Bear Pepper Spray (and knowing how to use it), and making noise and being alert to avoid surprise encounters with bears. Most bear-inflicted human injuries in Yellowstone National Park involve surprise encounters between hikers and female grizzly bears with cubs. If a bear is encountered and surprised at close range, biologists recommend backing away slowly, then leaving the area. If the bear charges, stop, stand your ground, and deploy your bear pepper spray if you have it. Bear spray has been highly effective at stopping aggressive behavior by bears. If a surprised bear charges at you and makes contact, play dead. Lay on the ground on your stomach, face down with your hands behind your neck and your elbows protecting the sides of your face. Leave your pack on as this will help protect your back. Once the bear has determined that you are no longer a threat, it will usually gather up its cubs and leave the area. Make sure that the bear is gone before you get up to leave.





Grizzly Bear Mortality in Yellowstone
Year Natural Death Vehicle Accident Managment Removal Euthanize Managment Removal Zoo Total
2000 2 0 0 0 2
2001 5 0 0 0 5
2002 1 2 0 0 3
2003 0 1 0 0 1
2004 2 1 1 0 4
2005 0 0 0 0 0
2006 0 1 0 0 1
2007 2 0 0 1 3
Total 12 5 1 1 19

Bear Sighting Reports and Bear Sighting Form ~ Adobe pdf forms


Information provided by Yellowstone National Park


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