36 CFR § 7.66 - North Cascades National Park.
(a)Bait for fishing. The use of nonpreserved fish eggs is permitted.
(b)Snowmobiles. After consideration of existing special situations, i.e., depth of snow, and depending on local weather conditions, the superintendent may designate as open to the use of snowmobiles the following locations within the National Park:
(1) The Cascade River Road between the park boundary and the Cascade Pass Trailhead parking area.
(2) The Stehekin Valley Road between the park boundary and Cottonwood Camp.