Safety and Permits in and around North Cascades National Park
If you are planning a 1 to 2 day SR-20 trip, the main mistake is treating “North Cascades” like one rule set. North Cascades National Park has no entrance fee, but nearby forest trailheads often need a parking pass. Overnight trips use a separate permit system, and access can change independently on SR-20, Cascade River Road, and the high trailhead zone east of Diablo