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Ski · Nordic · Backcountry · United States
Colorado · lift-served terrain

Arapahoe Basin

1,677 feet of lift-served vertical, from a base of 10,771 ft to a summit of 12,448 ft. Measured from the lowest and highest lift terminal on this mountain — not a box around a map pin — and cut into 4 five-hundred-foot bands.

1,677
ft vertical
10,771
ft base
12,448
ft summit
6
uphill lifts
665
footprint acres

The column

4 bands · base to summit
10,500–11,00030 ac · 18.0° · SSW327 mm
11,000–11,500152 ac · 26.6° · SSW328 mm
11,500–12,000310 ac · 22.4° · SSW336 mm
12,000–12,500173 ac · 21.7° · SW336 mm
under 15° easier 15–25° more difficult 25–33° most difficult over 33° expert bar length = acres · fill = elevation
NESW
Bands
4
All lifts
9
Lift length
5.7 km
Steepest band
26.6°
Operator
—
Coordinates
39.6319, -105.8751

Band by band

slope, aspect and winter normal
Band (ft)AcresSlope° RatingAspectDeg NDJFM mm
10,500–11,0003018.0more difficultSSW207327
11,000–11,50015226.6most difficultSSW203328
11,500–12,00031022.4more difficultSSW196336
12,000–12,50017321.7more difficultSW217336

Slope and aspect are the Horn 3×3 method on a ~13 m DEM. A band's aspect is the direction of the mean unit vector, not the mean of the angles. NDJFM mm is the PRISM 1991–2020 November–March precipitation normal at that height — liquid equivalent, not snow depth.

How this mountain gets scored

the verification station
Grizzly Peak SNOTEL (505:CO:SNTL) is 1.7 km away at 11,110 ft — 1,338 ft below this summit. It reports hourly precipitation, snow water equivalent and temperature at a surveyed elevation, which is the only truth at height that does not have to be interpolated first. Forecasts for this mountain will be scored there, and the score published whether or not it flatters.

Nearby

Loveland Basin Ski Area 6 km Keystone 8 km Breckenridge 24 km Winter Park Resort 28 km Copper Mountain 30 km Echo Mountain 31 km

Fly this mountain in 3D → · ← All 33 ski areas in Colorado · How these numbers are measured

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BUILT 2026-09-08T19:40:35Z