; and (B) any improvements to the National Forest System land described in subparagraph (A). (2) Easements As a condition of the conveyance under paragraph (1), the Secretary of Agriculture shall reserve easements to the conveyed land for all National Forest System roads and trails that originate at, terminate at, or traverse the conveyed land. (3) Water rights As a condition of the conveyance under paragraph (1), the Secretary of Agriculture shall convey to the State only those water rights held by the United States identified as 63-44, 63-1607, and 63-2817 in the water rights database of the Utah State Engineer that provide water to the Castle Rock Campground and the Belknap Historic Guard Station interpretive site. (4) Survey (A) In general If determined by the Secretary of Agriculture to be necessary, the exact acreage and legal description of the National Forest System land to be conveyed under paragraph (1) shall be determined by a survey approved by the Secretary of Agriculture. (B) Costs As a condition of the conveyance under paragraph (1), the State shall pay the reasonable survey costs associated with the survey under subparagraph (A). (5) Additional terms and conditions The Secretary of Agriculture may enter into an agreement with the State with respect to additional terms and conditions applicable to the conveyance under paragraph (1), including— (A) the management and maintenance of the Belknap Historic Guard Station interpretive site; (B) the use and maintenance of roads and trails on the conveyed parcel of National Forest System land; (C) the continued use of permitted livestock grazing on the conveyed parcel of National Forest System land; (D) continued Forest Service access to, and use and maintenance of, any water rights retained by the United States in the area of the conveyed parcel of National Forest System land