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.
Little Yosemite Valley their leeward side. Half Dome is a granite dome in Yosemite National Park located at the northwestern end of Little Yosemite Valley at — possibly Yosemite's most familiar rock formation. The granite crest rises more than above the Yosemite Valley floor at Tenaya Canyon and above the floor of Little Yosemite Valley. The trail to Half Dome branches to the north from the main Little Yosemite Valley trail near the ranger station, out houses and campground. Moraine Dome is a granite dome in Yosemite National Park along the northern margin of Little Yosemite Valley at which rises to an elevation