All Trails

Longs Peak via Keyhole Route

Allenspark, CO · 40.255, -105.615

Colorado's most iconic 14er. 14.5 miles round trip with class 3 scrambling through the Keyhole, Trough, Narrows, and Homestretch.

StrenuousRocky Mountain14,259 ftScrambleSummitExposed ridgeSummit viewsGeology

Longs Peak via Keyhole Route

⛅ Partly cloudy

Reconsider
26°
Feels 10°FSummit · 14,259 ft
7:17 AM6:16 PM
EXTREME COLDWINDYHYPOTHERMIA RISK

Wind

29mph

Precip

0%

Humid

38%

Elev Δ

+4900ft

12-Hour Temp Trend

26°33°

Hourly Forecast

8 AM

☀️

26°

9mph

9 AM

☀️

28°

8mph

10 AM

☀️

30°

8mph

11 AM

☀️

32°

8mph

12 PM

☀️

32°

8mph

1 PM

⛅

33°

6mph

2 PM

⛅

33°

5mph

3 PM

⛅

33°

6mph

4 PM

⛅

32°

5mph

5 PM

⛅

30°

7mph

6 PM

⛅

28°

7mph

7 PM

⛅

27°

8mph

Summit Conditions

53°F→−27°→26°F

Dry lapse rate: 5.4°F/1,000ft · 4,859 ft gain

◎L1
Heavyweight merino wool base

250g+ merino top and bottom — your foundation against the cold

◉L2
Insulated grid fleece

Heavy fleece or light synthetic puffy for active insulation

◈L3
Down or synthetic puffy jacketPACK

Pack this — put it on at summit stops and exposed ridgelines

◆L4
Waterproof hardshell jacketPACK

3L waterproof/windproof for summit protection against wind and snow

Summit Pack List

↟Insulated puffy↟Hardshell jacket↟Insulated gloves↟Warm beanie↟Neck gaiter / balaclava↟Hand warmers

Start Cold Tip

Start in your base + fleece. You'll warm up on the switchbacks. Pack your puffy for the summit — standing still in wind at 20°F drops your core temp fast.

Trail Guide

Updated 7:56:27 AM · America/Denver

Updated Oct 19, 7:56 AM UTC

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