Hollywood legend Kevin Costner ruminates on President Teddy Roosevelt in the new Fox Nation limited series 'Yellowstone to Yosemite.'

Kevin Costner is taking a brief detour from “Horizon” for the new docuseries “Yellowstone to Yosemite with Kevin Costner.”

The actor hosts a three-part documentary on FOX Nation about Yosemite National Park and a legendary camping trip there in 1903, when naturalist John Muir lobbied the president to better protect the nation’s natural wonders.

A documentary series premiering on Fox Nation this Saturday explores connections between two of the first national parks, and it follows up

Kevin Costner will soon be back on television screens in a new Yellowstone project. No, Costner is not reprising his role as John Dutton in a “Yellowstone” prequel or spinoff from Taylor Sheridan. Instead, he’s hosting a three-part limited docuseries about Yellowstone National Park.

Kevin Costner will host and executive produce a three-part docuseries titled 'Yellowstone to Yosemite' for Fox Nation.

Kevin Costner is returning to Fox Nation to host the three-part limited series Yellowstone to Yosemite with Kevin Costner, with the first episode debuting on February 8. The series also will kickoff the streaming service’s “America 250” campaign, marking the country’s semiquincentennial in 2026.

Costner's journey follows the 1903 Yosemite expedition of president Theodore Roosevelt and naturalist John Muir

The three-part limited series is a sequel to Costner's previous collaboration with Fox Nation, Yellowstone: One Fifty. The show is set to debut on Saturday, Feb. 8, and it will serve to launch the steaming platform’s year-long America 250 campaign, which celebrates the country’s upcoming 250th anniversary in 2026.

The newest documentary series from Fox Nation features actor Kevin Costner on a journey into some of the nation’s most beautiful national parks, as well as one former U.S. president’s mission to preserve the country’s frontier.

Image via Shutterstock Kevin Costner is exploring the history of Yellowstone and Yosemite in his upcoming documentary Yellowstone to Yosemite. In the documentary, he'll explore how John Muir and Teddy Roosevelt played pivotal roles in the early formation of the park.