; and (2) convey to the Arctic Slope Regional Corporation the remaining subsurface estate to which that Corporation is entitled under the agreement between that corporation and the United States, dated August 9, 1983. (b) Land adjacent to and southwest of ANWR As a condition of receipt of the benefits under this Act, the State of Alaska shall convey to the United States all right, title, and interest in and to the approximately 598,767 acres generally depicted as Proposed Trade Land on the map entitled Proposed ANWR Exchange , prepared by the State of Alaska Department of Natural Resources, and dated July 2015. 10. Clarification of western coastal boundary of ANWR (a) In general The western coastal boundary of the Arctic National Wildlife Refuge is defined— (1) as the boundary originally established as part of the Alaska Arctic Wildlife Range under Public Land Order 2214, dated December 6, 1960 (25 Fed. Reg. 12598)