; and (2) to assist in fulfilling the purposes of the Whiskeytown-Shasta-Trinity National Recreation Area. (b) Requirements The Secretary shall ensure that the visitor center authorized under subsection (a) is designed to interpret the scenic, biological, natural, historical, scientific, paleontological, recreational, ecological, wilderness, and cultural resources of the Whiskeytown-Shasta-Trinity National Recreation Area and other nearby Federal lands. (c) Cooperative agreements The Secretary of Agriculture may, in a manner consistent with this title, enter into cooperative agreements with the State and any other appropriate institutions and organizations to carry out the purposes of this section. 115. Del Norte County visitor center (a) In general The Secretary of Agriculture and Secretary of the Interior, acting jointly or separately, may establish, in cooperation with any other public or private entities that the Secretaries determine to be appropriate, a visitor center in Del Norte County, California— (1) to serve visitors; and (2) to assist in fulfilling the purposes of Redwood National and State Parks, the Smith River National Recreation Area, and other nearby Federal lands. (b) Requirements The Secretaries shall ensure that the visitor center authorized under subsection (a) is designed to interpret the scenic, biological, natural, historical, scientific, paleontological, recreational, ecological, wilderness, and cultural resources of Redwood National and State Parks, the Smith River National Recreation Area, and other nearby Federal lands. 116. Management plans (a) In general In revising the land and resource management plan for the Shasta-Trinity, Six Rivers, Klamath, and Mendocino National Forests, the Secretary shall— (1) consider the purposes of the South Fork Trinity-Mad River Restoration Area established by section 111