U.S. Code / Title 16 — ConservationTitle 16ChapterChapter 23—National Wilderness Preservation SystemContents§ 1131. National Wilderness Preservation System§ 1132. Extent of System§ 1133. Use of wilderness areas§ 1134. State and private lands within wilderness areas§ 1135. Gifts, bequests, and contributions§ 1136. Annual reports to Congress