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United States

Keystone

12 / 100 Powder Score
Thin Weather Clear
Official site
Snow 48h
0cm
Next 72h
0cm

A weather-model figure, worked out the same way for every ski area, and lower than what actually falls. Use it to compare ski areas, not against the resort’s own totals. How we measure →

Snow 24h
0 cm
Next 24h
0 cm
Temperature
0°C
Max wind
23 km/h
Elevation
2,829–3,742 m
Across
9.2 km

Updated: 10 Nov 2026, 12:15

We do not show a snow depth here. The weather model we use reports snow lying on the ground — it knows nothing about grooming or snowmaking, and it is not the base depth a ski area publishes. In Japan we can check our figures against 234 weather stations. Outside Japan there is nothing to check them against, so we do not print a number we have not verified. Snow report on the official site ↗

7-day outlook

Date Weather Snow (cm) Low / high (°C) Wind (km/h)
Mon 9 Nov Partly cloudy 0 −4 to 7 14
Tue 10 Nov Cloudy 0 −6 to 4 23
Wed 11 Nov Clear 0 −6 to 5 15
Thu 12 Nov Clear 0 −6 to 7 8
Fri 13 Nov Cloudy 0 −4 to 8 8
Sat 14 Nov Cloudy 0 −5 to 4 10
Sun 15 Nov Snow 1 −9 to −1 14

Score breakdown

Fresh (48h) 0/40
Forecast (24h) 0/25
Snow quality 4/20
Wind 6/10
Base 2/5

The five add up to the 100-point Powder Score: more fresh snow, more on the way and colder air all push it up. How we measure

Keystone, in United States, runs from 2,829 m at the base to 3,742 m at the top. Its mapped area is about 9.2 km across, with 142 marked runs and 20 lifts (about 110 km of piste in all).

Over the last twelve winters the ERA5 weather model gives it 161 cm of snowfall a season, 1,527th (tied) of 3,069 worldwide and 161st in the United States. Its winters are fairly steady; even the leanest, 2014/15 (113 cm), reached 70% of the average. December brings as much snow as January here (38 and 36 cm on average).

Runs and lifts

Counted from the runs and lifts drawn on OpenStreetMap, within the boundary of the ski area. These are not the resort’s own published figures.

Marked runs
142
Run length
110km
Lifts
20
Vertical
913m
Top 3,742 m · base 2,829 m

Run map

NoviceEasyIntermediateAdvancedExtremeOther Lift
North is up. Runs are coloured by difficulty; black lines are lifts.
Run map

Drag to move around, and use + and − to zoom. On a phone, swipe to move and pinch to zoom in further.
Slope shape, difficulty and lift types

The shape of the mountain

Longest run on the map4.7 km
Steepest pitch37°measured over at least 30 m
Average gradient of the runs13.8°

Which way the slopes face

North 43%
East 3%
South 15%
West 39%

Only 46% of the vertical on the runs descends to the north or east. The most common direction is north (43%).

By difficulty

Novice 1 · 0.2 km
Easy 20 · 18.7 km
Intermediate 51 · 40.4 km
Advanced 67 · 48.9 km
Extreme 1 · 0.8 km
Other 2 · 0.5 km

Lift types

  • Chairlift11
  • Magic carpet7
  • Gondola2

See past trail maps on Skimap.org ↗

Source: OpenSkiMap (© OpenStreetMap contributors, ODbL 1.0). How finely ski areas are drawn varies by region, so treat the counts as indicative. Vertical is the difference between the highest and lowest points of the mapped runs and lifts.

Live cameras

This ski area does not put a camera on its own slopes. What follows are nearby cameras, not the pistes themselves.

Footage remains the copyright of each operator. JAPANSNOWLINE neither stores nor redistributes it.

Some cameras here are provided by Windy.com. Footage plays in Windy’s own player; we do not store it. Windy.com

Videos

Meet Steven Cantwell, Para Snowboarder at Keystone Resort

By: KeystoneColorado · 26 Mar

Videos remain the copyright of whoever filmed them. JAPANSNOWLINE stores no video and plays everything through the standard YouTube player.

How much snow it gets

Modelled from weather data the same way at all 3,069 ski areas we cover. These are not the resort’s own published figures.

Seasonal snowfall
161cm
per season
Worst of 12 winters
113cm
The middle winter of the 12: 163 cm. The best: 214 cm.
World rank
1527
of 3,069 worldwide
Rank in country
161
of 534 in United States
Elevation rank
3
Highest to lowest, of 534 in United States. The centre point sits at 3,567 m, 3,039 m above the national median.

Compared with what is nearby

Within 50 km in a straight line. Ski areas in the same weather-model cell (about 30 km across) get the same figure.

Ski areaDistanceSeasonal snowfallWorld rank
Arapahoe Basin8.0 km158 cm1564
Loveland Basin Ski Area12.0 km166 cm1457
Loveland Valley Ski Area13.0 km166 cm1457
Breckenridge17.0 km146 cm1714
Copper Mountain22.0 km157 cm1578

When it falls, and how winters differ

Month by month

The most snow falls in March. March brings as much as January, or more. In amount, March brings 45 cm, more than the median of 30 cm.

38cm
Dec
36cm
Jan
43cm
Feb
45cm
Mar
Average snowfall by month, last 12 winters

Winter by winter

Across the 12 winters measured, the average is 161 cm, and 5 of them fell short of it. The leanest was 2014/15 with 113 cm; the biggest was 2023/24 with 214 cm (1.9 times as much). For 33% of the 534 ski areas in the United States the leanest winter was 2015/16; here it was a different one.

113
139
194
155
175
170
151
161
164
214
167
133
14/1515/1616/1717/1818/1919/2020/2121/2222/2323/2424/2525/26

Snowfall each winter (December–March total). The dashed line is the average; the numbers mark the leanest and the biggest winter.

Map

The weather map, and where it sits among nearby ski areas.

Official piste map ↗

Getting there

Get directions ↗ Open in Google Maps ↗

Other booking sites: Booking.com ↗ · Agoda ↗

Guides covering United States

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