Arapahoe Basin

Standing proud at 13,050 feet, Arapahoe Basin delivers Colorado's longest ski season and some of North America's most challenging terrain. Known affectionately as "A-Basin" by locals, this mountain maintains its authentic, adventurous spirit while offering terrain for all skill levels across its 1,428 acres.

Nine lifts serve A-Basin's diverse terrain, including the critical Lenawee Express and Black Mountain Express lifts that efficiently transport skiers to the mountain's renowned upper bowls. The Beavers and Steep Gullies expansion area is serviced by a high-speed quad, opening access to expert-level glades and chutes.

Arapahoe Basin Lift System

Total Ski Lifts = 9

6-Person Chair

Quad Chair

Double Chair

T-Bar

Surface Lift

Arapahoe Basin Resort Elevation

Trails

Total Runs

147

Total Area

1428 ac

577.9 ha

Difficulty Distribution

Beginner

Intermediate

20%

Advanced

49%

Expert

24%

View Full Trail Map

Location

Positioned along the Continental Divide just 68 miles from Denver, Arapahoe Basin sits at the eastern edge of Summit County on US Highway 6. The proximity to Denver makes it an accessible destination for day trips, while its location near Keystone and other Summit County resorts creates opportunities for varied multi-mountain adventures.

Arapahoe Basin

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Season Info

While most resorts wind down in spring, A-Basin often continues operations into early summer, sometimes as late as July 4th. The mountain typically opens in October, offering one of the first chances to ski in Colorado each season. High elevation and favorable weather patterns create exceptional snow conditions throughout an extended season that can last up to 8 months.

Current Season

2024 - 2025

Opening Day

11/1/2024

Closing Day

4/13/2025

Days Open

164