resolving the complicated co-management of USBR land as sole NPS jurisdiction. It eventually codified most of the existing recreation areas under the new national designation (Lake Roosevelt and Curecanti NRAs are the only NPS areas that have not been permanently established by Congress or the president). Lake Mead is still the largest NRA and is the most visited among those at reservoirs. The first new NRA under USFS administration was Spruce Knob–Seneca Rocks National Recreation Area, established in 1965. Congress initially authorized Delaware Water Gap NRA in 1965 with the expectation that the Tocks Island Reservoir would serve the New York and Philadelphia areas as the first NRA east of the Mississippi River, but local and environmental opposition led to the dam's cancellation. The NRA remains as the forested area intended to be flooded by the Delaware River. Mount Rogers NRA was also delayed and downsized, losing a planned reservoir and ski area. A 1968 NPS publication outlined policies for administration of recreational areas, which were distinct from its natural and historical areas. This included not only NRAs but also national lakeshores and seashores, national parkways, and some national scenic riverways; at that time there were 22 such areas, and recreation would be the dominant resource objective, but with multiple intensive uses allowed. But because most units contained a combination of natural, historic, and recreational lands, the General Authorities Act of 1970 made all areas equal within the National Park System; separate policy manuals for each were replaced in 1975 with one that would tailor policies in each park respective to the purpose of zones within. In 1972 Congress established two NRAs in urban areas as the first urban national parks: Golden Gate NRA in the San Francisco area and Gateway NRA in New York City, both with beaches, historic military sites, and natural conservation areas. Spearheaded by Director George Hartzog, this controversially expanded the Park Service's responsibilities into local urban recreation (in addition to the National Capital Parks), and after he left, the NPS opposed the creation of Cuyahoga Valley NRA south of Cleveland and Santa Monica Mountains NRA west of Los Angeles. The former was redesignated a national park in 2000. Chattahoochee River NRA north of Atlanta was created in 1978 and Boston Harbor Islands NRA in 1996. The Santa Monica Mountains and Boston Harbor Islands are partnerships with state parks and local agencies. Mount Hood is the