Yosemite National Park The State of California, however, retained control of Yosemite Valley and Mariposa Grove. Muir also helped persuade local officials to virtually eliminate grazing from the Yosemite high country. The newly created national park came under the jurisdiction of the United States Army's Troop I of the 4th Cavalry on May 19, 1891, which set up camp in Wawona with Captain Abram Epperson Wood as acting superintendent. By the late 1890s, sheep grazing was no longer a problem, and the Army made many other improvements. The cavalry could not intervene to ease the worsening condition of Yosemite Valley and Mariposa Grove.
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