All Trails

Mount Katahdin — Knife Edge

Northeast Piscataquis, ME · 45.904, -68.921

Northern terminus of the Appalachian Trail. The Knife Edge is a mile-long exposed ridge with 3-foot-wide sections and 2,000 ft drops.

StrenuousNortheast5,267 ftExposed ridgeSummitScrambleSummit viewsHistoric

Mount Katahdin — Knife Edge

☀️ Clear sky

Reconsider
29°
Feels 14°FSummit · 5,267 ft
6:58 AM5:42 PM
EXTREME COLDHIGH WINDHYPOTHERMIA RISK

Wind

31mph

Precip

0%

Humid

62%

Elev Δ

+3800ft

12-Hour Temp Trend

30°40°

Hourly Forecast

8 AM

☀️

30°

9mph

9 AM

☀️

33°

7mph

10 AM

☀️

36°

8mph

11 AM

☀️

38°

9mph

12 PM

☀️

39°

10mph

1 PM

☀️

39°

10mph

2 PM

☀️

40°

10mph

3 PM

☀️

40°

11mph

4 PM

☀️

39°

10mph

5 PM

⛅

36°

10mph

6 PM

⛅

34°

12mph

7 PM

⛅

34°

15mph

Summit Conditions

50°F→−21°→29°F

Dry lapse rate: 5.4°F/1,000ft · 3,767 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 7:56:04 AM · America/New_York

Updated Oct 19, 7:56 AM UTC

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