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

⛅ Overcast

Reconsider
29°
Feels 6°FSummit · 14,259 ft
6:29 AM7:35 PM
EXTREME COLDDANGEROUS WINDHYPOTHERMIA RISK

Wind

90mph

Precip

1%

Humid

91%

Elev Δ

+4900ft

12-Hour Temp Trend

33°46°

Hourly Forecast

9 AM

⛅

33°

25mph

10 AM

⛅

36°

26mph

11 AM

⛅

38°

25mph

12 PM

⛅

39°

24mph

1 PM

⛅

43°

23mph

2 PM

⛅

43°

19mph

3 PM

⛅

44°

17mph

4 PM

⛅

46°

8mph

5 PM

🌧️

42°

4mph

6 PM

🌨️

34°

15mph

7 PM

🌧️

33°

8mph

8 PM

🌧️

35°

9mph

Summit Conditions

42°F→−13°→29°F

Wet lapse rate: 2.7°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 8:16:42 AM · America/Denver

Updated Aug 31, 8:16 AM UTC

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