All Trails

Longs Peak via Keyhole Route

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

StrenuousRocky Mountain14,259 ftOpen Summit

Longs Peak via Keyhole Route

⛅ Overcast

Reconsider
6°
Feels -22°FSummit · 14,259 ft
6:17 AM7:45 PM
EXTREME COLDDANGEROUS WINDHYPOTHERMIA RISK

Wind

49mph

Precip

0%

Humid

30%

Elev Δ

+300ft

12-Hour Temp Trend

10°28°

Hourly Forecast

7 AM

☀️

10°

17mph

8 AM

☀️

15°

19mph

9 AM

☀️

17°

21mph

10 AM

☀️

19°

23mph

11 AM

☀️

20°

18mph

12 PM

☀️

22°

15mph

1 PM

☀️

26°

16mph

2 PM

☀️

27°

14mph

3 PM

☀️

28°

18mph

4 PM

☀️

27°

23mph

5 PM

☀️

27°

22mph

6 PM

☀️

26°

19mph

Summit Conditions

8°F→−2°→6°F

Dry lapse rate: 5.4°F/1,000ft · 273 ft gain

◎L1
Expedition-weight merino base

320g+ merino top and bottom — maximum warmth next to skin

◉L2
Heavy fleece + light puffy

Double mid-layer system for extreme insulation

◈L3
Expedition down parka

Heavy fill-power down or synthetic expedition jacket

◆L4
Hardshell jacket + pants

Full hardshell system — top and bottom protection mandatory

Summit Pack List

↟Expedition mittens↟Balaclava↟Ski goggles↟Chemical warmers (hands + toes)↟Emergency bivy↟Thermos with hot drink

Start Cold Tip

At these temperatures, DO NOT start cold. Wear full layers from the trailhead. Exposed skin risks frostbite in minutes. Turn back if conditions deteriorate.

Updated 6:25:13 AM · America/Denver

Updated Apr 19, 6:25 AM UTC

More trails in Rocky Mountain

Mount Elbert

14,433 ft · moderate

Grays Peak

14,270 ft · moderate

Pikes Peak — Barr Trail

14,115 ft · strenuous