During past winters it has been the practice of local stockmen to allow herds of horses and cattle to drift into the monument area to graze unrestrictedly over public as well as private lands and along the monument highways. There is such a large amount of private and county-owned land within the monument boundaries (31,000 acres out of a total of 150,000) that it is difficult to restrain stock from grazing on National Park Service land as well as on the land that is owned or leased by private individuals.[167] It soon became obvious that Badlands National Monument would be a popular attraction because of its location near U.S. Highways 14 and 16, both well-known national highways going through the Black Hills. In 1941 there were 70.02 miles of road in the national monument. Of this, 61.52 miles were constructed by the state and 8.5 miles by the federal government; 29.87 miles were graveled and 40.15 were dirt roads.[168] Although the roads through the area were only partially developed, thousands of travelers turned off the through highways to view the scenic Badlands. Stricklin reported in September 1941: More than a quarter of a million visitors had passed through Badlands National Monument by the close of the travel season on September 30, representing an increase of approximately 30 percent over the previous year, for the period during which an actual count was made.[169] The entrance of the United States into World War II in December 1941 had a great impact on the area and its operations. Since many of the CCC enrollees would be absorbed into the armed forces, the project work soon came to an end. The acting custodian reported in the spring of 1942, “On March 25, after two years and five months of productive work in Badlands National Monument, CCC Camp Badlands, NP-3 [located at Cedar Pass], was abandoned.”[170] Work was continued on several projects undertaken at Camp Badlands by a CCC side camp with the view toward completing the projects or leaving them “in such condition that the facilities involved may be used, and the materials, all of which have been on hand for some time, may be protected against deterioration and loss.”[171] However, the side camp was also closed in the following June, leaving practically all of the construction projects in various states of completion.[172] In December 1942 most of the CCC buildings at Cedar Pass were dismantled and removed by the armed services.[173]