Two Hikers Injured In Bear Attack On Yellowstone Mystic Falls Trail
Two hikers were injured Monday afternoon, May 4, 2026, in a bear attack on the Mystic Falls Trail near the Midway Geyser Basin in Yellowstone National Park.
Park officials said the encounter involved "one or more" bears and that investigators have not yet identified the species. Park authorities temporarily closed the area, including the Mystic Falls Trail and nearby backcountry campsites, while investigators examined the circumstances. Officials said the fate of the bear or bears will depend on whether the encounter was defensive or "something more unusual."
The episode traces back to decades of grizzly recovery after the species was listed as threatened under the Endangered Species Act in 1975. Grizzly numbers rose from about 136 bears to more than 1,000 by 2024, and that recovery has increased human-bear interactions in the Greater Yellowstone Ecosystem. Each spring bears emerge hungry and often protective, especially females with cubs in April and May, which heightens the risk of trail encounters; Yellowstone biologists also recorded an early grizzly sighting this year on March 9, signaling increased activity.
Yellowstone reiterated visitor guidance to stay at least 100 yards from bears, carry bear spray, make noise on trails, and hike in groups. A study from 1985 to 2006 found bear spray halted aggressive behavior in 92% of close-range grizzly encounters. On social media, users urged hikers to carry spray, keep distance, and avoid close wildlife photos as the park continues its investigation.
The recent bear attack highlights the growing tensions between wildlife and human visitors in Yellowstone, a trend attributed to the successful recovery of grizzly populations under the Endangered Species Act. According to the Interagency Grizzly Bear Study Team, grizzly numbers have surged from just 136 in 1975 to over 1,000 today, leading to more frequent encounters as bears expand their habitats. Social media users, including @SoonerJG and @BreakinNewz01, emphasize the seasonal risks associated with bears emerging from hibernation, particularly females with cubs who are more protective and aggressive. They urge hikers to adhere to safety guidelines, such as maintaining a 100-yard distance and carrying bear spray, which has proven effective in 92% of close-range encounters, as noted by bearwise.org.
Critics on platforms like @deeprivertx and @blitzer850 point to reckless behavior among some hikers, suggesting that tourists often underestimate the dangers posed by bears, sometimes seeking close encounters for social media photos. This perception of bears as approachable may contribute to dangerous situations, ultimately leading to injuries and the potential euthanization of bears involved in attacks. As the park continues to navigate these complex interactions, the balance between wildlife conservation and visitor safety remains a pressing concern.
Show source details & analysis (2 sources)
📊 Relevant Data
From 1872 to 2018, there were 8 documented human fatalities caused by bears in Yellowstone National Park, with 7 attributed to grizzly bears. ([digitalcommons.usu.edu](https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1630&context=hwi)) ([digitalcommons.usu.edu](https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1630&context=hwi)) ([digitalcommons.usu.edu](https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1630&context=hwi)) ([digitalcommons.usu.edu](https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1630&context=hwi)) ([digitalcommons.usu.edu](https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1630&context=hwi))
Bear-Caused Human Fatalities in Yellowstone National Park — digitalcommons.usu.edu
From 1979 to 2021, 44 people were injured by bears in Yellowstone National Park, during a period when the park received over 118 million visitors. ([yellowstonepark.com](https://www.yellowstonepark.com/things-to-do/wildlife/killed-by-bears)) ([yellowstonepark.com](https://www.yellowstonepark.com/things-to-do/wildlife/killed-by-bears)) ([yellowstonepark.com](https://www.yellowstonepark.com/things-to-do/wildlife/killed-by-bears)) ([yellowstonepark.com](https://www.yellowstonepark.com/things-to-do/wildlife/killed-by-bears)) ([yellowstonepark.com](https://www.yellowstonepark.com/things-to-do/wildlife/killed-by-bears))
How many people get killed by bears in Yellowstone? — yellowstonepark.com
Bear spray halted aggressive behavior in 92% of close-range encounters with grizzly bears in a study of incidents in Alaska. ([bearwise.org](https://bearwise.org/wp-content/uploads/2017/07/efficacy-of-bear-spray-smith-et-al.-2010.pdf)) ([bearwise.org](https://bearwise.org/wp-content/uploads/2017/07/efficacy-of-bear-spray-smith-et-al.-2010.pdf)) ([bearwise.org](https://bearwise.org/wp-content/uploads/2017/07/efficacy-of-bear-spray-smith-et-al.-2010.pdf)) ([bearwise.org](https://bearwise.org/wp-content/uploads/2017/07/efficacy-of-bear-spray-smith-et-al.-2010.pdf)) ([bearwise.org](https://bearwise.org/wp-content/uploads/2017/07/efficacy-of-bear-spray-smith-et-al.-2010.pdf))
Efficacy of Bear Deterrent Spray in Alaska — bearwise.org
📌 Key Facts
- The bear attack occurred Monday afternoon, May 4, 2026, on the Mystic Falls Trail near the Midway Geyser Basin, a heavily traveled route a few miles from Old Faithful (Mystic Falls Trail).
- The incident left two hikers injured (two hikers).
- Park officials say the encounter involved "one or more" bears and the species has not yet been identified (investigators are determining whether it was a grizzly or a black bear) (one or more bears).
- Park authorities temporarily closed the surrounding area, including multiple trails and backcountry campsites, while investigators examine the circumstances of the attack (backcountry campsites).
- Officials said the fate of the bear or bears involved will depend on whether the encounter is determined to have been defensive or "something more unusual" (fate of the bear or bears).
- Yellowstone reiterated visitor guidance for bear country: stay at least 100 yards from bears, carry bear spray, make noise on trails, and hike in groups (Yellowstone).
📰 Source Timeline (2)
Follow how coverage of this story developed over time
- Fox News confirms the bear attack occurred Monday afternoon, May 4, 2026, on the Mystic Falls Trail near the Midway Geyser Basin, a heavily traveled route a few miles from Old Faithful.
- Yellowstone officials say the incident involved "one or more" bears, but the species has not yet been identified and determining whether it was a grizzly or black bear is part of the ongoing investigation.
- Park authorities temporarily closed the surrounding area, including multiple trails and backcountry campsites, while investigators examine the circumstances of the attack.
- Officials say the fate of the bear or bears involved will depend on whether the encounter is determined to have been defensive or "something more unusual."
- Yellowstone reiterated visitor guidance for bear country, including staying at least 100 yards from bears, carrying bear spray, making noise on trails, and hiking in groups.