West of Denver near Loveland, the Arapahoe Basin Ski Area, or just A-Basin to most locals, has 109 runs spread over 960 acres that are served by 6 lifts with a maximum vertical descent of 2,270 feet. While most consider A-Basin to be pretty basic, but the vistas along the Continental Divide are stunning. For expert snowboarding, check out the East and West walls and the Rock Garden off the Pallavicini Lift. Also off the Pallavicini Lift, there is an extreme run called Gauthier. Also, known as 5th Avenue, the Gauthier is a steep gully with a 46 degree drop running along the western boundary. To reach the run from the top of the Pallavinci Lift, traverse skier left along the Pali cornice and start down 4th Avenue and stay left.
The new lift out of Montezuma Bowl allows for 4 new backcountry access points: Thurmans Bowl, The Beavers, The Rock Pile, and Montezuma Road (near the base of the new lift).
To reach the snowboarding at A-Basin from Denver, head west on US70 for about 50 miles. Follow the signs to the ski area, which is before the Eisenhower Tunnel.