If you’re coming from Canada, don’t forget your Passport or Enhanced Driver’s License as you’ll need it to cross the border. The Border Custom’s offices at Grand Forks and Cascade (hwy 395) are only open from 8 AM to 12 Midnight. The Nighthawk and Midway crossings are only open from 9 AM to 5 PM. However, the Oroville crossing is open 24 hours per day.
The park is located at the north end of Oroville and is well marked.