Alaska · Trail 216256

Muddy River

Muddy River Trail is a 7.7 miles trail in Tongass National Forest, Alaska. The Forest Service rates it trail class 3, developed. It is open to hiking, horse and pack stock, mountain biking, motorcycle, atv and e-bikes.

Trail conditions, closures and hazards are not tracked here. The Tongass National Forest official page carries current alerts and closure orders.

Map

One end Other endLine simplified to about 100 metres. Basemap from the USGS National Map.

One end56.9057, -132.7169 · Directions ↗
Other end56.8706, -132.5904 · Directions ↗

The ends are the two ends of the longest connected chain of segments. The record does not say which is the usual start.

The trail

Length7.7 miles
Trail class3, developed
Typeland trail
Surfaceimported loose material
Typical grade12-20 percent
Typical tread widthunder 12 inches
Motor vehiclesOpen to at least one motorized use
AccessibilityNot evaluated
Trail numbers216256
ForestTongass National Forest (unit 1005)
StatesAlaska
Detail publishedmanagement level, with uses

Values are the set across all segments. Class 1 is minimally developed and class 5 is fully developed. Grade and width are the forest's typical values, not measured extremes.

Weather by month

NOAA climate normals →
Weather by month near Muddy River Trail30°40°50°60°January: 11.39 inches of precipitation, 20.7 inches of snowFebruary: 7.60 inches of precipitation, 16.9 inches of snowMarch: 7.60 inches of precipitation, 20.0 inches of snowApril: 6.66 inches of precipitation, 1.1 inches of snowMay: 5.86 inches of precipitation, 0.2 inches of snowJune: 4.98 inches of precipitation, 0.0 inches of snowJuly: 5.63 inches of precipitation, 0.0 inches of snowAugust: 8.21 inches of precipitation, 0.0 inches of snowSeptember: 14.35 inches of precipitation, 0.0 inches of snowOctober: 13.84 inches of precipitation, 0.4 inches of snowNovember: 12.28 inches of precipitation, 10.8 inches of snowDecember: 11.79 inches of precipitation, 15.5 inches of snowJanFebMarAprMayJunJulAugSepOctNovDecJanuary: 30.9°F averageFebruary: 32.1°F averageMarch: 34.9°F averageApril: 41.4°F averageMay: 48.5°F averageJune: 54.0°F averageJuly: 56.3°F averageAugust: 55.8°F averageSeptember: 50.8°F averageOctober: 43.3°F averageNovember: 35.8°F averageDecember: 31.8°F average0 in5 in10 in15 in20 in25 inTemp °FInches
The line is the average temperature and the bars are average precipitation at Petersburg 1, 12 miles from the trail midpoint at 107 feet, station USW00025329 in the NOAA monthly climate normals for 1991 to 2020. Precipitation totals about 110 inches a year. The dotted line is average snowfall, about 86 inches a year on the same inches scale.

Allowed uses

HikingAllowed year-round
Horse and pack stockAllowed
Mountain bikingAllowed year-round
MotorcycleAllowed year-round
ATVAllowed 05/15 to 09/15 (month/day)
E-bikesAllowed year-round

A use is listed when the Forest Service records it as managed, accepted or discouraged on any segment. Discouraged still means legal. Uses marked restricted are left out. Where the forest publishes a Motor Vehicle Use Map, that map governs motorized use.

Trailheads

The Forest Service recreation layer records no trailhead within a third of a mile of this trail's line. Many trails start from a road pullout or another trail with no trailhead record. The forest's recreation pages list the trailheads it does publish.

Camping nearby

No federal campground is recorded within five miles of the trail. Dispersed camping is allowed on most National Forest land outside posted closures. The forest office has the current rules.

Reference

Questions people ask

How long is the Muddy River Trail?

7.7 miles, the sum of the 1 segment the Forest Service records under this name in Tongass National Forest.

Source: Forest Service trail layer

What is allowed on the Muddy River Trail?

hiking, horse and pack stock, mountain biking, motorcycle, atv and e-bikes. The trail is open to at least one motorized use. Some uses are seasonal. The allowed uses section lists the dates.

Source: Forest Service trail layer

Where does the Muddy River Trail start?

The line begins at 56.9057, -132.7169 and ends at 56.8706, -132.5904. No Forest Service trailhead is recorded within a third of a mile of it. The record does not say which end is the usual start.

Source: Forest Service trail layer

Is the Muddy River Trail in a wilderness area?

No. The trail line does not cross any polygon in the National Wilderness Preservation System layer.

Source: Wilderness Connect

Where can I camp near the Muddy River Trail?

No federal campground is recorded within five miles of the trail. Dispersed camping is allowed on most National Forest land outside posted closures. The forest office has the current rules.

Source: Tongass National Forest official page

How developed is the Muddy River Trail?

Trail class 3, which the Forest Service describes as developed. Class 1 is a minimal, unimproved route and class 5 is fully developed, often paved.

Source: Forest Service trail layer

How steep and how wide is the Muddy River Trail?

The typical grade is 12-20 percent. The typical tread is under 12 inches wide.

Source: Forest Service trail layer

Who manages the Muddy River Trail?

Tongass National Forest, Forest Service unit 1005. The trail is in Alaska.

Source: Tongass National Forest official page

Source

This page is built from 1 segment named MUDDY RIVER in the Forest Service TrailNFS_Publish layer, administrative unit 1005. Wilderness overlap is tested against the National Wilderness Preservation System layer from Wilderness Connect. Trailheads and Forest Service campgrounds come from the Forest Service Recreation Opportunities layer. Data refreshed September 17, 2026. The methodology page explains how segments become trails.