From the first the control of Yosemite National Park has been vested in the Secretary of the Interior. Immediately after the passage of the act of creation, military units were detailed to take charge of all national park lands. The state retained its plan of administration of the original Yosemite Grant, and so came about the dual control which for sixteen years colored the Yosemite administration with petty misunderstandings and hindered progress in the maintenance of the entire region. Galen Clark’s old ranch (Wawona) became headquarters for the Acting Superintendent of the federal preserve. From this eccentric hub, patrols of cavalrymen were sent into the unbounded wilderness area of the new preserve. A trail system and accurate maps did not exist. One of the first undertakings of the early superintendents was to make the rough country accessible by horse trail. The topography was studied, and a good map was prepared. Following the practice established in Yellowstone National Park, patrolling stations were established, and the United States Army had the safety of Yosemite’s fauna and flora fairly within its keeping. Since pioneer days, sheep and cattlemen had enjoyed unrestricted use of the excellent range which was now forbidden them. Naturally they were reluctant to abandon it. Their trespass was the most formidable threat with which the troopers were confronted, and concerted, ingenious work was necessary to expel the intruders. When the first culprits were taken into custody, it was found that no law provided for their punishment. Congress had failed to provide a penalty for the infraction of park rules. Nothing daunted, the superintendents put the captured herders under arrest and escorted them across the most mountainous regions to a far boundary of the park. There they were liberated. The herder’s sheep were driven out of the reserve at another distant point. By the time the herder had located his animals, his losses usually were so great as to represent a more severe punishment than could have been meted out by the court had the law applied. Several years of this practice caused neighboring ranchers to keep their animals out of the forbidden territory. Captain Abram Epperson Wood was the first superintendent. With detachments from the Fourth Cavalry he arrived in the park on May 19, 1891, and continued in charge until his death in 1894. Each year the troopers came in April or May and withdrew in the fall. During the winter two civilian rangers attempted to patrol the area. With such inadequate winter protection, it is small wonder that poachers grew to feel that the wild life of the reserve was their legitimate prey. It was not until 1896, in fact, that a determined effort was made to keep firearms out of the park at any time of the year.