In aid of the construction, operation and maintenance of the Columbia Basin project (formerly the Grand Coulee Dam project), authorized by the Act of August 30, 1935 (
49 Stat. 1028), the Act of August 4, 1939 (
53 Stat. 1187), and the Columbia Basin Project Act (Public, Numbered 8, Seventy-eighth Congress, first session,
57 Stat. 14), there is hereby granted to the United States, subject to the provisions of this section and sections
835e to
835h of this title,
The Secretary of the Interior, in lieu of reserving rights of hunting, fishing, and boating to the Indians in the areas granted under this section and sections
835e to
835h of this title, shall set aside approximately one-quarter of the entire reservoir area for the paramount use of the Indians of the Spokane and Colville Reservations for hunting, fishing, and boating purposes, which rights shall be subject only to such reasonable regulations as the Secretary may prescribe for the protection and conservation of fish and wildlife: Provided, That the exercise of the Indians’ rights shall not interfere with project operations. The Secretary shall also, where necessary, grant to the Indians reasonable rights of access to such area or areas across any project lands.