History of the Yosemite area drainages of two river watersheds. Preservation of watersheds was very important to Muir, who said "you cannot save Yosemite Valley without saving its Sierran fountains." The State of California retained control of Yosemite Valley and the Mariposa Grove of Big Trees. Muir and 181 others founded the Sierra Club in 1892, in part to lobby for the transfer of the valley and the grove into the national park. Like Yellowstone National Park before it, Yosemite National Park was at first administered by various units of the United States Army. Captain Abram Wood led the 4th Cavalry Regiment into the new
Yosemite Transportation Company Office Yosemite Transportation Company Office The Yosemite Transportation Company Office, also known as the Wells Fargo Office, was built in the Yosemite Valley in 1910 to house facilities of motor stage and horse stage services between the nearest rail terminal at El Portal and Yosemite National Park. The rustic log structure also provided telegraph and express services. The 1-1/2 story log structure measures by , with a prominent front porch, accented by a decorative log truss. The building is an example of the National Park Service rustic style as it was applied at Yosemite, with strips of cedar bark applied in