; 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 provide for the interpretation of the scenic, biological, natural, historical, scientific, paleontological, recreational, ecological, wilderness, and cultural resources of the Whiskeytown-Shasta-Trinity National Recreation Area and other Federal land in the vicinity of the visitor center. (c) Cooperative agreements In a manner consistent with this section, the Secretary may 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 the Secretary of the Interior, acting jointly or separately (referred to in this section as the Secretaries ), may establish, in cooperation with any other public or private entity that the Secretaries determine to be appropriate, a visitor center in Del Norte County, California— (1) to serve visitors