; 123 Stat. 1033) is modified to exclude certain land, as depicted on— (A) the Bureau of Land Management map entitled North Fork Owyhee, Pole Creek, and Owyhee River Wilderness Aerial and dated July 19, 2016; and (B) the Bureau of Land Management map entitled Pole Creek Wilderness Pullout Zoom Aerial and dated July 19, 2016. (b) Maps (1) Effect The maps referred to in subsection (a) shall have the same force and effect as if included in this Act, except that the Secretary may correct minor errors in the maps. (2) Availability The maps referred to in subsection (a) shall be available in the appropriate offices of the Bureau of Land Management. 1113. Chugach Region land study (a) Definitions In this section: (1) CAC The term CAC means the Chugach Alaska Corporation. (2) CAC land The term CAC land means land conveyed to CAC pursuant to the Alaska Native Claims Settlement Act ( 43 U.S.C. 1601 et seq.) under which— (A) both the surface estate and the subsurface estate were conveyed to CAC; or (B) (i) the subsurface estate was conveyed to CAC; and (ii) the surface estate or a conservation easement in the surface estate was acquired by the State or by the United States as part of the program. (3) Program The term program means the Habitat Protection and Acquisition Program of the Exxon Valdez Oil Spill Trustee Council. (4) Region The term Region means the Chugach Region, Alaska. (5) Study The term study means the study conducted under subsection (b)(1). (b) Chugach Region land exchange study (1) In general Not later than 1 year after the date of enactment of this Act, the Secretary, in coordination with the Secretary of Agriculture and in consultation with CAC, shall conduct a study of land ownership and use patterns in the Region. (2) Study requirements The study shall— (A) assess the social and economic impacts of the program, including impacts caused by split estate ownership patterns created by Federal acquisitions under the program, on— (i) the Region; and (ii) CAC and CAC land