In 1903, US President Theodore Roosevelt took a camping trip in California's Yosemite Valley with conservationist John Muir. Roosevelt famously loved the outdoors, but Muir had invited him for more than just camping: Yosemite was in danger. It was part of a struggle to set aside land for both preservation and public use. Elyse Cox details the delicate balancing act of creating a national park. [Directed by Boniato Studio, narrated by Alexandra Panzer, music by Inés Mirás Vieites].