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No conflict would occur between these potential projects and recommended wilderness or potential wilderness additions. More than 75 percent of the monument is currently under grazing permits issued by the National Park Service. This grazing will be discontinued WIder provisions of Public Law 86-729 which was enacted September 8, 1960. The law stipulated that grazing privileges then in effect would be continued for a period of twenty-five years, and thereafter during the lifetime of the permittee and any successor in his immediate family. ~) . The Jones Hole National Fish Hatchery adjoins the north boundary of the monument in Utah. Vehicular access is from the west and . does not cross monument lands. The road extends 42 miles ,13. 3 ll'.!.les of which is paved with asphalt, from the hatchery to Vernal. The remainder is unimproved graded road. The hatchery went into operation in 1970. It now produces about 150,000 pounds of trout eanually (rainbow, brook and brown trout). The hatchery has a capacity to produce twice that alOOunt. Water for the hatchery comes from natural springs on hatchery land and flows into the monument. Sedimentation ponds are now being constructed to maintain satisfactory water quality. These ponds will be completed in 1974. Four residences, one duplex and hatchery buildings on the 300 acre hatchery site cannot be seen from any point in the monument. There are no interrelsted wilderness areas adjacent or contiguous to Dinosaur National Monument. Nor are any proposed in nearby leads administered by the Forest Service, Bureau of Sport Fisheries and Wildlife or the Bureau of Land Management. The closest proposed wilderness area, which is 50 miles to the west in the Ashley and Wasatch National Forests, is the High Uintas Primitive Area. Although the Forest Service is studying other roadless areas in Utah for wilderness status, no other lands under its jurisdiction are now proposed for this classification. The Bureau of Reclamation proposes to construct one or more dams in the Yampa River drainage outside of the IOOnument. If construction takes place, it will affect portions of the wilderness. Riparian habitat will be altered, as it has been on the upper Green River, and endangered species of fish will be further threatened. The degree of these effects will depend on the mitigating measures taken in dam planning, design and construction. 10