FEIS Wilderness Area means an area of designated wilderness identified on the Upper Copper/Jacksina Wilderness map available at the Slana Ranger Station, the Main Park Visitor Center, the Tanada and Copper Lake trailheads, and on the park Web site.
Frozen means frost depth of 6 inches as measured with a soil probe and determined by the Superintendent.
Improved means a trail that is in a design-sustainable or maintainable condition as determined by the Superintendent.
Nabesna District means a designated area in the northern portion of Wrangell-St. Elias National Park and Preserve as shown on a map available at the Slana Ranger Station, the Main Park Visitor Center, and on the park Web site.
Recreational use means the use of an off-road vehicle for any purpose other than for subsistence uses, which are defined in § 13.420 , or access to inholdings in accordance with 43 CFR 36.10 .
Trail corridor means an area extending 0.5 miles from either side of the centerline on the Black Mountain trails and portions of the Tanada Lake trail within the FEIS Wilderness Area.
36 C.F.R. §13.1914