Plumas-Eureka State Park is a California state park located in the Sierra Nevada and Cascade Range in Plumas County, California. The park, as a mining museum, shows and protects the history of the active mid-19th century California Gold Rush mining period. As a large natural area it shows and protects the serenity of the mountain's meadows, forests, lakes, and granite peaks. Camping, picnicking, biking, fishing, and hiking are offered.