Yellowstone National Park
National park in the western United States
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| October 2024 | Grizzly 399, a 28-year-old female renowned in the Grand Teton National Park area, was struck and killed by a vehicle on Highway 26/89 in Snake River Canyon, Wyoming. She was the oldest known reproducing female in the Greater Yellowstone Ecosystem, having raised numerous cubs and attracting many visitors. |
| July 2024 | A hydrothermal explosion occurred in Biscuit Basin. |
| 2023 | Surpassed previous visitation record with 4.5 million people visiting the park. |
| January 2023 | Biden administration continues to focus on climate resilience and restoration of environmental protections within national park systems. |
| 2022 | Wolf population increases to 108 total wolves across 10 packs, with 40 surviving pups |
| October 30 2022 | North entrance of Yellowstone National Park reopened, two days ahead of schedule, following flood damage. |
| October 15 2022 | Northeast entrance of Yellowstone National Park reopened after flood damage. |
| June 2022 | Experienced record-level rainfall and flooding that caused multiple road and bridge failures, power outages, and mudslides. The Yellowstone River rose to a new record height, surpassing the 1918 record. The park was closed for 9 days and partially reopened on June 22. |
| April 22 2022 | President Biden signs the Earth Day proclamation, which includes provisions and commitments related to national parks and conservation efforts. |
| 2021 | Wolf population stabilizes at 97 total wolves across 8 packs, with 47 surviving pups |
| January 20 2021 | President Biden takes office, potentially signaling new priorities and approaches for the National Park Service during his administration. |
| January 13 2021 | Jimmy Carter National Historical Park in Georgia renamed from Jimmy Carter National Historic Site |
| January 13 2021 | Homestead National Historical Park in Nebraska renamed from Homestead National Monument of America |
| January 5 2021 | Weir Farm National Historical Park in Connecticut renamed from Weir Farm National Historical Site |
| 2020 | Notable increase in wolf population to 123 total wolves, with a record 54 pups surviving. |
| 2020 | Wolf population sees a substantial growth to 123 total wolves across 9 packs, with a record 54 surviving pups |
| 2020 | The Wildland Fire Strategic Plan was introduced as the latest iteration of National Park Service fire management policies. |
| 2020 | Moose population in Yellowstone had dramatically declined to less than 200 individuals, a significant reduction from approximately 1,000 in previous decades, attributed to habitat loss from the 1988 fires and reduction of dense fir forests. |
| December 27 2020 | New River Gorge National Park and Preserve in West Virginia renamed from New River Gorge National River |
| November 9 2020 | Medgar and Myrlie Evers Home National Monument established in Mississippi |
| October 30 2020 | Ste. Genevieve National Historical Park established in Missouri |
| September 22 2020 | Mill Springs Battlefield National Monument established in Kentucky |
| September 18 2020 | Dwight D. Eisenhower Memorial established in Washington, DC |
| 2019 | Wolf population increases to 94 total wolves with 8 packs and a significant pup survival of 42 |
| 2019 | A new directive was issued recommending specific fuel reduction strategies and protective measures for structures and infrastructure. |
| December 20 2019 | White Sands National Park redesignated from White Sands National Monument in New Mexico |
| March 12 2019 | Multiple National Park redesignations, including Honouliuli National Historic Site, Tule Lake National Monument, Pearl Harbor National Memorial, Golden Spike National Historical Park, Reconstruction Era National Historical Park, Fort Sumter and Fort Moultrie National Historical Park, Saint-Gaudens National Historical Park, and Ocmulgee Mounds National Historical Park |
| February 15 2019 | Indiana Dunes National Park redesignated from Indiana Dunes National Lakeshore |
| 2018 | Wolf population declines to 80 total wolves across 9 packs, with 24 surviving pups |
| 2018 | President Donald Trump approved new National Park Units during his presidential term, establishing 5 new national park sites to expand the National Park Service's protected areas. |
| October 26 2018 | Camp Nelson National Monument established in Kentucky |
| September 2018 | A U.S. district judge ruled that grizzly bear protections must be restored, arguing against their removal from the threatened status list. |
| February 22 2018 | Gateway Arch National Park redesignated from Jefferson Expansion Memorial in Missouri |
| January 8 2018 | Martin Luther King, Jr. National Historical Park redesignated from a national historic site in Georgia |
| 2017 | Grizzly bears were again removed from the endangered species list. |
| 2017 | Wolf population remains stable at 97 total wolves across 11 packs, with 21 surviving pups |
| 2016 | Colin Scott, a 23-year-old American man from Portland, Oregon, died after falling into a thermal hot spring in the Norris Geyser Basin. |
| 2016 | Recorded a peak of 4,257,177 recreational visitors, which was the highest visitation number at that time. |
| 2015 | Wolf population slightly decreases to 98 total wolves across 10 packs, with 35 surviving pups |
| August 2015 | The eighth recorded bear-related death in the park's history occurred. |
| August 6 2015 | A 63-year-old hiker from Billings, Montana was fatally attacked by a grizzly bear near the Elephant Back Loop Trail. Park officials subsequently euthanized the bear due to public safety concerns. |
| 2014 | Wolf population grows to 104 total wolves across 11 packs, with 40 surviving pups |
| 2013 | Wolf population rebounds to 95 total wolves with 10 packs and a significant increase in pup survival to 41 |
| 2012 | Wolf population declines to 83 total wolves across 10 packs, with only 20 pups surviving |
| 2011 | Wolf population stabilizes with 10 packs and 98 total wolves, with an increased pup survival of 34 |
This contents of the box above is based on material from the Wikipedia articles History of the National Park Service, Yellowstone fires of 1988, History of wolves in Yellowstone & Yellowstone National Park, which are released under the Creative Commons Attribution-ShareAlike 4.0 International License.