The Secretary shall manage the conservation area in a manner that conserves, protects and enhances its resources and values, including the resources and values specified in subsection (a), pursuant to the Federal Land Policy and Management Act of 1976 [43 U.S.C. 1701 et seq.] and other applicable law, including this subchapter.

The Secretary shall allow only such uses of the conservation area as the Secretary finds will further the purposes for which the conservation area is established. Except where needed for administrative purposes or to respond to an emergency, use of motorized vehicles in the conservation area shall be permitted only on roads specifically designated for such use as part of the management plan prepared pursuant to subsection (g).

Congress hereby reserves a quantity of water sufficient to fulfill the purposes, as specified in subsection (a), for which the conservation area is established. The priority date of this reserved right shall be November 28, 1990.

The Secretary and all other officers of the United States shall take all steps necessary to protect the right reserved by paragraph (1), including the filing by the Secretary of a claim for the quantification of such right in any present or future appropriate stream adjudication in the courts of the State of Arizona in which the United States is or may be joined and which is conducted in accordance with section 666 of title 43.

Nothing in this subchapter shall be construed as a relinquishment or reduction of any water rights reserved or appropriated by the United States in the State of Arizona on or before November 28, 1990.

The Federal rights reserved by this subchapter are specific to the conservation area located in the State of Arizona designated by this subchapter. Nothing in this subchapter related to reserved Federal water rights shall be construed as establishing a precedent with regard to any future designations, nor shall it constitute an interpretation of any other Act or any designation made pursuant thereto.

Nothing in this subchapter shall be construed to impair or conflict with the implementation of the authorization contained in section 1524(f) of title 43.

No later than two years after November 28, 1990, the Secretary shall develop a comprehensive plan for the long-term management of the conservation area (hereinafter in this subchapter referred to as the “management plan”) in order to fulfill the purposes for which the conservation area is established. The management plan shall be developed with full public participation and shall include provisions designed to assure protection of the resources and values (including the resources and values specified in subsection (a)) of the conservation area.

The management plan shall include a discussion of the desirability of the inclusion in the conservation area of additional lands, including the lands not in Federal ownership that are contiguous to the boundary of the conservation area (as depicted on the map referenced in subsection (b) or as hereafter adjusted pursuant to subsection (h)) and within the area extending two miles on either side of the centerline of Eagle Creek from the point where Eagle Creek crosses the southern boundary of the Apache National Forest to the confluence of Eagle Creek with the Gila River (this area is hereafter referred to in this subchapter as the “Eagle Creek riparian area”).

In order to better implement the management plan, the Secretary may enter into cooperative agreements with appropriate State and local agencies pursuant to section 307(b) of the Federal Land Policy and Management Act of 1976 [43 U.S.C. 1737(b)].

In order to assist in the development and implementation of the management plan, the Secretary may authorize appropriate research, including research concerning the environmental, biological, hydrological, cultural, and other characteristics, resources, and values of the conservation area, pursuant to section 307(a) of the Federal Land Policy and Management Act of 1976 [43 U.S.C. 1737(a)].

Subject to the limitations set forth in paragraph (3), the Secretary is authorized to acquire non-Federal lands or interests therein within the boundaries of the conservation area or within the Eagle Creek riparian area.

The Secretary is authorized to adjust the boundaries of the conservation area so as to incorporate within the conservation area any lands or interests within the Eagle Creek riparian area that may be acquired after November 28, 1990, as well as public lands within that portion of the Eagle Creek riparian area west of the centerline of Eagle Creek that the Secretary finds appropriate in order to properly manage such acquired lands as part of the conservation area. Any lands or interests so incorporated shall be managed as part of the conservation area.

No lands or interests therein owned by the State of Arizona or any political subdivision of such State shall be acquired pursuant to this subsection except through donation or exchange, and no lands or interests within the conservation area or the Eagle Creek riparian area shall be acquired from any other party or entity except by donation, exchange, or purchase with the consent of the owner of such lands or interests.