Ski Run Ratings
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Keystone

144 measured runs, ranked by our calibrated difficulty score (0 to 100), comparable across every resort.

Runs
144
Total skiable vertical
29979 m
Avg calibrated difficulty
50/100
Longest run
Schoolmarm (1) · 3.8 km
Hardest run
Snake Pit · 86/100
Easiest run

22 green · 45 blue · 65 black

Aspect: 35 face south (more sun, warmer and softer snow), and 83 face north (shadier, colder, holds snow better).

Treeline: 7 above the treeline (more exposed, weather-dependent), 67 below it (more sheltered), 70 crossing it.

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All runs

144 runs at Keystone, ranked by calibrated difficulty
RunCalibrated ▼Max / MeanRated
Snake Pit86 ◆◆35.1° / 26.9°—
peru glades ◆85 ◆◆38.1° / 24.9°—
Brahma85 ◆◆37.9° / 24.2°—
Crap Game84 ◆◆36.4° / 24.6°—
Roulette81 ◆◆38° / 21.2°—
packsadle line ◆79 ◆32.5° / 23.6°—
Black Jack79 ◆34.3° / 21.5°—
The Glades ◆78 ◆29.9° / 25.4°—
Patriot ◆76 ◆30.2° / 23.5°—
Black Hawk ◆76 ◆29.6° / 24.4°—
Buck Shot75 ◆29.8° / 23.1°—
Wild Card74 ◆28.5° / 23.8°—
Liberty ◆74 ◆28.5° / 23.6°—
South bowl ◆73 ◆30.4° / 20.1°—
Silver Heels ◆73 ◆32.2° / 18.4°—
Midnight Ride ◆73 ◆32.1° / 18.5°—
Geronimo ◆73 ◆27.2° / 24.4°—
The Windows72 ◆38° / 13.1°—
Puma Bowl ◆72 ◆32° / 18.2°—
Eagle's Nest ◆72 ◆29.6° / 20.3°—
Wombat Chutes ◆71 ◆29.9° / 19°—
Revolution ◆70 ◆32° / 15.8°—
Gun Barrel69 ◆27.8° / 20.2°—
Bullet ◆69 ◆27.6° / 20.7°—
Bingo ◆69 ◆30.8° / 16.3°—
Tenderfoot Glades ◆67 ◆29.8° / 15.8°—
Last Hoot ◆66 ◆28.4° / 16.9°—
Bushwhacker ◆66 ◆28° / 17.2°—
bullet glades ◆65 ◆25.5° / 20.1°—
Badger ◆65 ◆25.9° / 19.5°—
Ambush ◆65 ◆26.9° / 17.8°—
Mine Shaft ◆64 ■24.7° / 20.6°—
Diamond Back ◆64 ■27.2° / 16.7°—
Bald Mountain Glades ◆64 ■26° / 18.8°—
Two If By Sea ◆63 ■23.8° / 21.5°—
hidden chute BC63 ■25.6° / 18.2°—
Christmas Tree ◆63 ■25.2° / 19°—
Wildfire ◆62 ■25.9° / 17.1°—
Timberwolf ◆62 ■25.5° / 18.2°—
Powder Cap ◆62 ■25.5° / 18.1°—
Nuchu ◆62 ■25.9° / 17.1°—
Indy Face ◆62 ■23.9° / 20.8°—
Cat Dancer ◆62 ■26.7° / 16°—
Go Devil Lower ◆61 ■27.4° / 13.5°—
Cat South Glades ◆59 ■23.4° / 18.9°—
Tele Trees ◆58 ■22.6° / 19°—
Starfire ◆58 ■23.3° / 18.1°—
Narrow Gauge58 ■23.3° / 18.2°—
Last Alamo ■58 ■23.3° / 17.8°—
Jackface ◆58 ■24.5° / 16°—
Victory Chutes ◆56 ■24.2° / 14.8°—
The Wolf Den ◆56 ■22.9° / 17.1°—
The Grizz ◆56 ■23.3° / 16.1°—
Porcupine ■56 ■22.8° / 17.4°—
Liberty Trees ◆56 ■24.6° / 14.1°—
Bighorn ■56 ■23° / 16.9°—
The Trap ◆55 ■22.5° / 16.7°—
The Stadium ◆55 ■25.5° / 11.5°—
Spillway ■55 ■22.1° / 17.7°—
Ida Belle ◆55 ■24.5° / 13.4°—
Conquest ◆55 ■22.8° / 16.6°—
South Bowl Trees ◆54 ■22.4° / 16.6°—
Wildcat ◆53 ■23.3° / 14.2°—
Red ■53 ■22.1° / 15.7°—
Elk Run ■53 ■22.3° / 15.1°—
Bachelor ■53 ■23.5° / 13.9°—
Ute ■52 ■22.6° / 14.3°—
Pika Glades ◆52 ■21° / 17.3°—
Mouse Trap52 ■21° / 17.3°—
Go Devil ◆52 ■22.5° / 14.3°—
Swandyke ■51 ■21.3° / 15.3°—
River Run ■51 ■20.7° / 17.1°—
Mozart ■51 ■21.1° / 15.6°—
Foxtrot Glades ◆51 ■21.4° / 15.1°—
Wolverine ◆50 ■20.7° / 15.8°—
Wild Irishman ■50 ■22° / 13°—
Frenchman ■49 ■21.7° / 12.8°—
Whipsaw ■48 ■20.9° / 13.8°—
Upper Frenchman ◆48 ■20.9° / 13.7°—
Uneva ◆48 ■22.6° / 10.6°—
Torrey's ■48 ■19.6° / 16.5°—
Quandary ●48 ■22.7° / 10.9°—
Gassy Thompson ■48 ■21.2° / 13°—
Beger ■48 ■21° / 13.9°—
The Edge ◆47 ■21.1° / 12.7°—
The Corral ◆47 ■19.5° / 15.2°—
Santa Fe ■47 ■21.6° / 11.2°—
Oh, Bob ■47 ■19.8° / 14.7°—
Flying Dutchman ■47 ■21.2° / 12.3°—
Ballhooter ■47 ■21.3° / 12.3°—
Anticipation ■47 ■22.4° / 9.8°—
Richter ◆46 ■21° / 11.6°—
Ptarmigan ■46 ■19.1° / 15.4°—
Gray's ■46 ■18.4° / 16.5°—
Prospector ■45 ■19.3° / 13.8°—
Orfint Boy ■45 ■19.8° / 13.1°—
Jackwhacker ■45 ■20.1° / 12.6°—
Buffalo ■45 ■19.7° / 13.1°—
Packsaddle Bowl ◆44 ■17.9° / 15.6°—
Midland ■44 ■18.8° / 14.4°—
Goalpost Gully ◆44 ■19.4° / 13°—
Haywood ■43 ■19.4° / 12.6°—
Wichita ■41 ■18.8° / 11.6°—
Crosscut ■41 ■18.9° / 11.1°—
Spring Dipper ■40 ■19.1° / 10.6°—
Paymaster ■40 ■18.1° / 11.7°—
Jacques St. James ■39 ●18.3° / 10.8°—
Ten Mile ●38 ●18.7° / 9°—
Missouri ■38 ●17.1° / 12°—
HooDoo ■36 ●16.5° / 11.5°—
Main Street ◆35 ●15.7° / 12.6°—
Lower Prospector ●35 ●17.4° / 8.9°—
Bobtail ■35 ●17° / 10.1°—
Silver Spoon ●34 ●15.7° / 11°—
Dercum's Dash ■34 ●17.4° / 7.3°—
Schoolmarm (1) ●33 ●16.4° / 9°—
I-70 ●33 ●15.9° / 9.9°—
Freda's ●33 ●15.2° / 11.9°—
Mr. Toad's Wild Ride ◆32 ●16.5° / 7.6°—
Park Lane ◆30 ●15° / 8.5°—
Last Chance ●29 ●14.7° / 9°—
Jaybird ●29 ●15.1° / 7.4°—
Easy Street ●29 ●14.1° / 9.8°—
Silvermaster ■28 ●13.5° / 10.1°—
Jones Gulch Road ●27 ●14.3° / 6.8°—
Jane's Journey ■25 ●13° / 7.5°—
Foxtrot ■25 ●13.7° / 5.3°—
Ina's Way ●24 ●13.1° / 6.3°—
Scout ●23 ●12.2° / 7.9°—
The Alley ●22 ●11.1° / 9.2°—
Coyote Caper ◆22 ●12.4° / 6.1°—
to lower go devil ◆21 ●11.7° / 5.9°—
Learning Area ●21 ●11.4° / 6.6°—
Endeavor ●21 ●11.8° / 6.5°—
Modest Girl ●18 ●9.8° / 6.8°—
Lodgepole ■17 ●9.7° / 6.7°—
Acapulco Road ●17 ●10° / 6.2°—
Thorne ■16 ●8.9° / 5.9°—
The Willows ■16 ●9.7° / 5.1°—
sampler ◆15 ●8.8° / 5.6°—
Two Sled ●14 ●7.6° / 5.4°—
Ski-Daddle ●13 ●7.5° / 4°—
Miners ●11 ●5.8° / 4.9°—
Schoolmarm (2) ●8 ●4.5° / 2.6°—