Parking
Start at Carbon River Entrance. There are two vault toilets and picnic tables, but no designated parking spaces, drinking water or food service.

Mount Rainier National Park, WA
A long rainforest road walk beside a restless glacial river
Overview
Map & elevation
Plan your hike

The highest, rockiest slopes around here are a summer buffet for grizzly bears.
Mount Rainier Tour Guide
Parkwolf is a GPS audio tour guide for Mount Rainier National Park. As you drive, it chimes in with what’s ahead: hidden gems, upcoming stops, history, geology, and wildlife, right through your car’s speakers.
See the Mount Rainier audio tourRecorded for this area
An Alder's Underground Helpers“Red alders can get a start on rocky river margins where many other trees struggle. Part of their advantage is underground.”
Plays near this trailhead in the Parkwolf Mount Rainier Tour Guide.
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Trail guide
The Carbon River Trail follows the former road from Carbon River Entrance five miles one way to Ipsut Creek Camp; walking there and back is about 10 miles. It is a long, gently rising valley walk through inland temperate rainforest, with intermittent views of a wide, braided river. Allow about five hours. The route is broad, but its old road surface can be rough and uneven, so this is a better fit for someone who wants a substantial walk than a quick viewpoint stop.
Start at Carbon River Entrance and stay on the former road, which is designated for hiking and biking as far as Ipsut Creek Camp. The surface changes from pavement to dirt and loose gravel, with roots, rocks, potholes and flood-recovery detours. The route passes the turnoff for the short Old Mine Trail, then reaches junctions for Green Lake and Chenuis Falls; those are separate hikes, not part of this mapped route. Continue to Ipsut Creek Camp at about five miles, then return the same way.
Flooding has repeatedly damaged this valley road. The 2006 flood washed out part of it, and the park closed the former road to motor vehicles and converted the five-mile section into a trail. The river carries glacial silt and gravel, building shifting braided channels; that changing river is part of the walk's character and the reason the old road needs flood repairs and detours.
About 1.2 miles from the entrance, a separate spur climbs to the gated entrance of an exploratory copper mine. The Washington Milling and Mining Company worked the site between 1907 and 1909, but it never became a commercial mine. The spur is not included in the 10-mile out-and-back distance.
Look for large, moss-covered Sitka spruce, Douglas-fir and western red cedar, with ferns and nurse logs in the damp understory. The Carbon River Entrance has picnic tables and two vault toilets; there is no drinking water or food service. Pets are prohibited on park trails. Bicycles are permitted on this corridor only as far as Ipsut Creek Camp; a wilderness permit is required if you camp there overnight. For a shorter taste of the forest, the separate Rain Forest Loop at the entrance is a quarter mile.
Wildlife
466 sightingsMountain GoatMost seen around 6 AMSighting map
383 sightingsBlack BearMost seen around 7 PMSighting map
10 sightingsWolverineMost seen around 6 AMSighting map
58 sightingsElkMost seen around 6 AMSighting map
574 sightingsMule DeerMost seen around 6 AMSighting map
1,853 sightingsHoary MarmotMost seen around 6 AMSighting mapSighting maps show where each species has been reported across Mount Rainier. Wildlife moves, so no sighting is guaranteed.
Keep exploring
ChallengingCarbon Glacier and Moraine Park Trail21 mi · 11 hr · At the trailheadA glacier overlook and wildflower meadow reward a long river walk
ModerateGreen Lake Trail10.5 mi · 5 hr · At the trailheadA rainforest walk to a 172-foot waterfall and a tucked-away lake.
ModerateChenuis Falls Trail7.4 mi · 4.5 hr · At the trailheadA reclaimed road leads to a rocky river crossing and falls.
ModerateOld Mine Trail2.9 mi · 2 hr · At the trailheadA rainforest path to a steep spur and a gated historic mine.
EasyCarbon River Rain Forest Nature Trail0.5 mi · 24 min · At the trailheadA mossy boardwalk through a rare inland rainforest.
ChallengingBoundary Trail to Florence Peak8 mi · 7.5 hr · At the trailheadA steep rainforest climb ends at a rocky ridge and summit scramble.
ChallengingWest Boundary Trail6 mi · 4 hr · At the trailheadA steep rainforest climb with waterfalls and a forested ridge.
ChallengingLake James Trail25.9 mi · 14 hr · 0.2 mi awayA long backcountry climb through Windy Gap to a tucked-away lake.
Sight · 1.2 mi awayCarbon River Old MineA fern-framed mine entrance from Rainier’s short mining boom.
Ranger station · 2.2 mi awayCarbon River Ranger StationRanger help and permits from a remodeled farmhouse.
Sight · 3 mi awayRanger FallsThree tiers of falling water reward a long Green Lake walk.
Sight · 3.1 mi awayTolmie Peak Fire LookoutRainier rises above Eunice Lake from this historic lookout's rocky perch.
Sight · 3.5 mi awayChenuis FallsA 168-foot cascade at the end of a long riverside walk.
Campground · 4.2 mi awayIpsut Creek CampgroundA backcountry camp that takes a 19-mile hike from Sunrise.
Sight · 4.3 mi awayIpsut FallsA two-tier waterfall at the end of a long forest approach.
Sight · 4.9 mi awayMowich LakeA wooded island, clear water, and trails into the quiet corner.Parkwolf’s Mount Rainier ranking