The Mount Carrigain via Signal Ridge is a 10.6-mile out-and-back with 3,270 ft of elevation gain.
10.6 mi • 3,270 ft gain • 5-9 hours • Signal Ridge Trailhead (Sawyer River Road)
Feels like 39°F
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Today Sep 22 | Tomorrow Sep 23 | Thursday Sep 24 | |||||||
|---|---|---|---|---|---|---|---|---|---|
| AM | PM | night | AM | PM | night | AM | PM | night | |
| Temperature & Wind | |||||||||
| Weather | cloudy | cloudy | clear | sunny | sunny | clear | sunny | sunny | clear |
| Temp °F hi / lo | 38° 37° | 39° 37° | 40° 38° | 38° 36° | 41° 37° | 42° 40° | 42° 40° | 46° 41° | 46° 45° |
| Chill °F | 31° | 30° | 28° | 25° | 27° | 31° | 31° | 36° | 38° |
| Wind mph | 8 | 10 | 21 | 21 | 18 | 17 | 17 | 7 | 17 |
| Gust mph est. | 13 | 16 | 34 | 34 | 27 | 27 | 27 | — | — |
| Precipitation | |||||||||
| Precip in (rain/snow) | - | - | - | - | - | - | - | - | - |
| Freezing ft | 10,075 ft | 10,432 ft | 11,635 ft | ||||||
| Conditions | |||||||||
| Cloud cover | 100% | 100% | 38% | 12% | 9% | - | - | - | - |
| Vis mi | clear | clear | clear | clear | clear | 9 | clear | clear | clear |
| UV | 4 | 6 | — | 4 | 5 | — | 4 | 5 | — |
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| Elevation | Today Sep 22 | Tomorrow Sep 23 | Thursday Sep 24 |
|---|---|---|---|
| lo/hi °F · wind mph & dir · chill °F | |||
| Summit 4,700 ft | 37/38° 8 | 36/38° 21 | 40/42° 17 |
| 4,100 ft | 38/39° 9 | 37/39° 22 | 41/42° 16 |
| 3,300 ft | 40/41° 13 | 39/40° 21 | 43/46° 14 |
| 2,500 ft | 42/45° 11 | 41/43° 16 | 44/50° 10 |
| Trailhead 2,000 ft | 43/47° 8 | 43/45° 14 | 45/52° 7 |
4 more days of forecast — plan around the weather window, not just tomorrow.
Full hourly summit forecasts: Mount Carrigain weather
Climbs the Signal Ridge Trail from Sawyer River Road, then up the open crest of Signal Ridge to the summit observation tower, one of the best 360-degree views in the Whites. Sawyer River Road is gated in winter, which adds a few miles.
Distance
10.6 mi
Elevation Gain
3,270 ft
Duration
5-9 hours
Trailhead
Signal Ridge Trailhead (Sawyer River Road)
The Mount Carrigain via Signal Ridge is 10.6 miles round trip, starting at Signal Ridge Trailhead (Sawyer River Road). At AMC book time — half the distance in hours plus 30 minutes per 1,000 ft of climbing — that works out to roughly 5-9 hours. Most parties take longer than book time on rough or above-treeline terrain, in winter, or with a heavy pack.
The Mount Carrigain via Signal Ridge climbs about 3,270 ft over 10.6 miles — an average of roughly 308 ft of gain per mile. That figure is cumulative ascent across the whole out-and-back, not the difference between the trailhead and the high point.
HikerNerd rates the Mount Carrigain via Signal Ridge Difficult, scored with the Shenandoah difficulty formula — √(elevation gain × 2 × distance) — applied to its 10.6 miles and 3,270 ft of gain. The score measures physical effort only. Above-treeline exposure, water crossings, and winter conditions can make a moderate-rated route the hardest day of your year, so check current conditions before committing.
The Mount Carrigain via Signal Ridge summits 1 named peak: Mount Carrigain.
The Mount Carrigain via Signal Ridge starts at Signal Ridge Trailhead (Sawyer River Road). Check the trail alerts on this page before you drive — trailhead access and parking in the White Mountains change with closures and construction.
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