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© 2026 Roaming.Camp · Data from NPS, Recreation.gov, BLM, USFS, NWS, and the FCC.Operating on ceded ancestral land.Photography via Unsplash.

Leave it better than you found it.

-mypubliclandsroadtrip 2016- Search for Solitude, White Clouds Wilderness (29207547015)

Hike

Grassy Mountain Trail

Ends at Coffee Cup Lake
Inside Payette National Forest
1,949 ft of climbing

6.3 mi out & back · 1,949 ft gain · 7,884 ft high point · Hard

From Grassy Mountain Trailhead

In Payette National Forest · Idaho · OpenStreetMap contributors

About Elevation Highlights Map Camp near here More hikes

About this hike

Grassy Mountain Trail is a 6.3 mile out and back route from Grassy Mountain Trailhead reaching Coffee Cup Lake in Payette National Forest.

Elevation

1,949 ft of gain round trip.

Camp near here

The closest places to sleep, measured from the trailhead.

See all on the map

2.4 mi from the trailhead
Hazard Lake
Campground

More hikes nearby

Ranked the same way, within twenty-five miles.

23 mi from you
Copper Creek
- Summits Sheep Rock
- Inside Payette National Forest
- 2,505 ft of climbing
5.6 mi out & back · 2,505 ft gain · Hard
Payette National Forest · Camp 8 mi away

Out: 1,140 ft up, returns the same way. Source: USGS 3DEP.

Highlights

What the trail reaches, measured from the start.

Coffee Cup LakeDestination · 3.2 mi in
Hard BenchmarkNearby · 1.1 mi in
Grass Mountain LakesNearby · 1.4 mi in

Map

The route at the trailhead. Drag with two fingers, or hold a key to zoom.

Trail data: USFS, NPS, © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP via Mapzen terrain tiles. Nearby reading: Wikipedia. Photos: Wikimedia Commons contributors, licensed as shown on each photo. Download the trail and feature data.

At a glance

Length: 6.3 mi
Shape: Out & back
Gain: 1,949 ft round trip
High point: 7,884 ft
Low point: 6,837 ft
Difficulty: HardFrom 6.3 mi and 1,949 ft of climbing
Managed by: OpenStreetMap contributors
State: Idaho
Camps within 15 mi: 7
Start: Grassy Mountain Trailhead
Trailhead: 45.1768° N · 116.1788° W

Get directions Open the map

7.5 mi from the trailhead

Grouse Campground

Campground · Idaho

8.2 mi from the trailhead

Upper Payette Lake Campground

Campground · Idaho

17 mi from you

Sampson Spring

Summits Cannon Ball Mountain
Inside Nezperce National Forest
5,990 ft of climbing

13.9 mi loop · 5,990 ft gain · Very hard

Nezperce National Forest · Camp 14 mi away

Jackley Mtn.

Summits Bryan Mountain
Inside Nezperce National Forest
8,032 ft of climbing

18.7 mi out & back · 8,032 ft gain · Very hard

Nezperce National Forest · Camp 15 mi away

Hard Butte Lookout

Summits Hard Butte
Inside Payette National Forest
6,086 ft of climbing

22.0 mi loop · 6,086 ft gain · Very hard

Payette National Forest · Camp 2 mi away

Lava Ridge National Recreation Trail

Summits Hershey Point
Inside Payette National Forest
5,446 ft of climbing

21.9 mi out & back · 5,446 ft gain · Very hard

Payette National Forest · Camp 4 mi away

Maki Lake

Ends at Maki Lake
Inside Payette National Forest
3,655 ft of climbing

9.5 mi loop · 3,655 ft gain · Very hard

Payette National Forest · Camp 5 mi away

More like this

Hikes that read like this one, wherever they are.

Coffee Cup Lake
- Ends at Coffee Cup Lake
- Inside Payette National Forest
- 1,966 ft of climbing
6.1 mi out & back · 1,966 ft gain · Hard
Payette National Forest · Camp 2 mi away
Frog Lake
- Ends at Grass Mountain Lakes
- Inside Payette National Forest
- Camp 4 mi away
1.9 mi out & back · 596 ft gain · Easy
Payette National Forest · Camp 4 mi away
Grass Mountain (Wilderness)
- Passes Grass Mountain
- Inside Payette National Forest
- 4,678 ft of climbing
20.0 mi out & back · 4,678 ft gain · Very hard
Payette National Forest · Camp 11 mi away
Serene Lake
- Ends at Lake Serene
- Inside Payette National Forest
- 1,675 ft of climbing
4.0 mi out & back · 1,675 ft gain · Moderate
Payette National Forest · Camp 2 mi away

Weather

7-day forecast

Mon39°28°Sunny
Tue40°29°Cloudy
Wed40°30°Sunny
Thu35°29°Chance Light Snow
Fri35°27°Chance Light Snow
Sat39°33°Mostly Sunny
Sun42°Partly Sunny

Mon: Sunny · wind 2 to 8 mph NNE

National Weather Service · refreshed hourly

Signal

Cell coverage here

VerizonLTE · Poor

FCC coverage data · signal varies in remote terrain