In 1968, Secretary of the Interior Stewart Udall urged President Lyndon B. Johnson to use his authority under the Antiquities Act of 1906 to designate Gates of the Arctic and other areas in Alaska as national monuments — a parting conservation gift to the nation during the last days of his administration. However, Johnson balked at the idea, and the process of making the proposals a reality was postponed. All through the 1970s, conservationists and the National Park Service waited for the passage of the Alaska National Interest Land Conservation Act, which was designed to create or expand fifteen Alaska parks. Finally, in 1978, when time was running out for the bill, President Jimmy Carter stepped in and used his authority to designate these areas as national monuments. Carter’s actions held the conservation units in trust while Congress concluded its deliberations, and by 1980, Congress passed the land claims act, creating 106 million acres of new protected lands in Alaska.
Despite pressure from mining and petroleum developers to create a relatively small park split by a pipeline corridor, the final boundaries drawn for Gates of the Arctic National Park and Preserve encompassed eight million contiguous acres, stretching nearly two hundred miles from the region surrounding the North Fork of the Koyukuk westward to include the upper reaches of the Kobuk and the Noatak Rivers. At its western end, the park abuts Noatak National Preserve, and on the east, beyond the Dalton Highway corridor, the expanded Arctic National Wildlife Refuge stretches to the Canadian border. As such, Gates of the Arctic National Park and Preserve became the midsection of a nearly 800-mile swath of protected land covering the Brooks Range from end to end.