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第 4 页CC0 1.0（公有领域）
This finding aid describes the Wilbur Doudna Papers, part of the NPS History Collection.
第 14 页CC0 1.0（公有领域）
By the time the National Park Service was established in August 1916, Congress had created nine national parks and twelve national monuments. Although these sites were under the jurisdiction of the Secretary of the Interior, most were in the West and were run by the Army which saw its function…
第 19 页CC0 1.0（公有领域）
Since 2002, the National Park Service (NPS) has awarded Environmental Achievement (EA) Awards to recognize staff and partners in the area of environmental preservation, protection and stewardship.
