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

Sundown Mountain Resort

420 feet of lift-served vertical, from a base of 724 ft to a summit of 1,144 ft. Measured from the lowest and highest lift terminal on this mountain — not a box around a map pin — and cut into 2 five-hundred-foot bands.

420
ft vertical
724
ft base
1,144
ft summit
4
uphill lifts
24
footprint acres

The column

2 bands · base to summit
500–1,00017 ac · 12.4° · W222 mm
1,000–1,5007 ac · 17.3° · W222 mm
under 15° easier 15–25° more difficult 25–33° most difficult over 33° expert bar length = acres · fill = elevation
NESW
Bands
2
All lifts
6
Lift length
1.7 km
Steepest band
17.3°
Operator
—
Coordinates
42.5166, -90.8224

Band by band

slope, aspect and winter normal
Band (ft)AcresSlope° RatingAspectDeg NDJFM mm
500–1,0001712.4easierW265222
1,000–1,500717.3more difficultW265222

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
No SNOTEL within 25 km. SNOTEL is a western network, so this mountain is verified against the NOHRSC snowfall analysis and the nearest COOP and ASOS observations instead — all coarser, and none of them at summit height. That is a real limit on what can be claimed here, and it is stated rather than hidden.

Nearby

Chestnut Mountain Resort 41 km West 93 km Tyrol Basin Ski And Snowboard Area 103 km

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

FORECAST SLOPES
Ski and winter sports weather for the United States. Part of the Forecast Network.
BUILT 2026-09-08T19:40:35Z