Tallgrass, a Blackstone Infrastructure portfolio company, announced a $105 million gift to Yellowstone National Park on October 19, 2026, marking the largest single private contribution in U.S. National Park history. The National Park Service said the gift will create a permanent Conservation and Stewardship Fund that will bankroll scientific research, improve visitor facilities, and broaden access for Wyoming students and families. The park’s director, Jim S., welcomed the donation, calling it a “transformative step for the park’s long‑term stewardship.”
The allocation is split into three clear buckets: $50 million for conservation and research, $35 million earmarked for a new visitor centre at Norris Geyser Basin, and $20 million to expand access for students and families. The visitor centre will feature interactive displays on geothermal activity and will replace a makeshift interpretive station that has been in use for two decades. A group of 12‑year‑old students from Laramie will soon tour the centre as part of a pilot outreach program.
Yellowstone Forever, the park’s nonprofit partner, said its CEO Maria Lopez would work closely with Tallgrass and the National Park Service to ensure the funds are used strategically. The partnership aims to establish a lasting source of support beyond one‑off projects, with oversight committees set up to monitor spending and impact. Both parties agreed that the first phase of the visitor centre construction is slated to begin in early 2027.
The $20 million access programme will subsidise 5,000 Wyoming families in 2027, allowing them to experience the park’s geothermal wonders without the usual pass fees. A local rancher from Cheyenne said he hopes his grandchildren will be able to visit the park for the first time. The funding will also fund scholarships for students pursuing environmental science, ensuring the park’s legacy is passed on to the next generation.
Tallgrass will release quarterly progress reports to the public and the park’s board, with the first report due by the end of 2027. The park’s management team is set to begin site surveys for the new visitor centre in February, with construction expected to wrap up by 2029.