Recreation in the Sierras has a home in and around Grass Valley, the hub of Nevada County. Home to the South Yuba River State Park, the Empire Mine, and other Sierra trails, twists, turn, peaks, and valleys, Grass Valley is the perfect place for near year-’round activity. Recreation in the Sierras has many forms, and much of it comes with skiing and snowboarding. Grass Valley is the perfect stop for a weekend ski getaway along the I-80 corridor.