Enter your search criteria below. You can also use the A-to-Z wilderness list, search by location on a map, or search by name or state. For aggregated tables of wilderness data, view the wilderness summary reports.
The Federal laws that established individual wilderness unit, beginning with the Wilderness Act of 1964 and including all subsequent wilderness legislation, are the legally correct source for the wilderness names, locations, original acreage, and dates of designation. Wilderness Connect's National Wilderness Preservation System database, searchable using the form above, began with the following publication, which compiled the legislated acres for all designated wilderness areas: Landres, Peter; Meyer, Shannon. 2000. National Wilderness Preservation System database: key attributes and trends, 1964 through 1999. Gen. Tech. Rep. RMRS-GTR-18-Revised Edition. Ogden, UT: U.S. Department of Agriculture, Rocky Mountain Research Station. 97 p. Download this publication. Current reported acreage figures are the sum of administrative unit acreages reported by each wilderness' managing agency or agencies through annual realty reports. Data last updated on 4/1/19 (John D. Dingell, Jr. Conservation, Management, and Recreation Act additions) and 7/1/19 (3000 acreage Yuki Wilderness donation).