In Oroville watch for the Oroville Dam Boulevard exit off of Highway 70. Follow Oroville Dam Boulevard up to the dam, the Visitor Center, and the Bidwell Canyon Marina section of the lake.
Coming from the south, continue north on Highway 70 from Oroville about 12 miles. Watch for the sign to Lime Saddle Recreation Area and Pentz Road. Turn left there on Pentz Road off Highway 70 and continue for 2 miles.
Coming from Chico, turn off onto Pentz-Durham Road. Turn left and continue approximately 6 miles to Pentz Road, keeping an eye open for the Lime Saddle Recreation Area sign. Turn left there and go 2 miles to the Marina entrance.
From Reno go north on Highway 395 until you reach Highway 70. Follow Highway 70 west to Lake Oroville. (An alternate route, about the same time and mileage, is to take I-80 west to Highway 20, and follow it to Highway 70.)
From the Sacramento area go north on Highway 99, switching over to Highway 70 in Marysville