Grinnell Mountain

Grinnel Mountain, taken from Lake Peak, Photo by Kathy Wing.

Peak Name

Grinnell Mountain
24L

Elevation

10284

 feet

Status

active

Region

San Gorgonio Area

Range

San Bernardino Mountains

Location

34.1261216,-116.808912

Description

Named for the professor, Sierra Club member and conservationist who studied the fauna of the area, Grinnell is an interesting and enjoyable hike by either route. It has lovely views of the beautiful Fish Creek area the east, Big Bear to the north, and San Gorgonio to the south. It is typically hiked with nearby Lake Peak, and/or ten Thousand Foot Ridge, all reached from Fish Creek Saddle.

Route 1 ascends the Fish Creek Trail to the saddle then continues to and follows the ridge north. Route 2 comes from the South Fork Trail.

Maps generated from CalTopo.com, reproduced with permission

Route 1- Fish Creek Trail
Elevation Gain
2300′
Navigation Difficulty
Moderate
Distance
10 miles round trip on trail and cross-country
Estimated time
5-6 hours round trip
Route Rating
Class 1, moderate
Leader Rating Required
“I”, normal conditions

Driving route

Take I-10 east past San Bernardino to the Orange Street exit (SR 38).
Go one block east, then go north (left) 0.5 mile to Lugonia Avenue. Turn right on SR 38 (east).
Continue east on SR 38 about 33 miles to 1N02, the road to Heart Bar Campground, on the right. Turn right. Note your odometer and go as follows:
At 1.2 miles, fork. Go right on 1N05.
At 2.8 miles, Aspen Grove Trail 2E05 goes west.
At 6.9 miles, fork. Go right.
At 7.2 miles, fork. The Pacific Crest Trail (PCT) crosses the road here. Go right.
At 7.6 miles, fork. Go right.
At 7.7 miles, Fish Creek Trailhead (1W07). Park here.

Hiking route

From the parking area (8040′), hike trail 1W07 southwest about 1/2 mile to a junction with the Aspen Grove Trail.
Keep left on 1W07 and continue 4 miles to Fish Creek Saddle at 9805′.
Hike north on a use trail up the ridge to the summit.

Route Notes

Printable Route

Road Type

Dirt

Google Maps Link to Trailhead 

Route 2- South Fork Trail
Elevation Gain
3550′
Navigation Difficulty
Moderate
Distance
13 1/2 miles round trip on trail and cross-country
Estimated time
6 hours round trip
Route Rating
Class 1, moderate
Leader Rating Required
“I”, normal conditions

Driving route

Take I-10 east past San Bernardino to the Orange Street exit (SR 38).
Go one block east, then go north (left) 0.5 mile to Lugonia Avenue. Turn right on SR 38 (east).
Continue east on SR 38 about 26 miles to Jenks Lake Road on the right. Turn right (south).
Continue to the signed South Fork Trailhead parking lot on the left. Park here.

Hiking route

From the parking area (6850′), hike the South Fork Trail (1E04) past the old Poopout Hill trailhead to South Fork at Slushy Meadows where the Dry Lake Trail forks left (8200′).
Turn left (southeast) and follow this trail 1 1/2 miles to Dry Lake where there is another trail fork.
Turn left and go 1/2 mile to Lodgepole Spring.
Continue 3/4 mile east cross-country up to Fish Creek Saddle at 9805′.
Continue as in Route 1.

Route Notes

Printable Route

Road Type

Paved

Google Maps Link to Trailhead 

Additional Peak Information

Special conditions: Permits for day or overnight use are required for all routes and have a limit of 12. Permits can be obtained online from the San Gorgonio Wilderness Association at swga.org up to 90 days in advance or at the Mill Creek Ranger Station, 9 miles from Redlands on SR 38.

Historical notes: The peak was named for Joseph Grinnell, University of California zoologist, who made a study of the birds and mammals of the San Gorgonio Mountain area in 1905-1906.

Nearby Peaks

Backus Peak
Owens Peak
Black Mountain #5
Morris Peak

External Links

mountain 1

Peakbagger.com

Click Here

ranger-tower 1

Nearest ranger station

Click Here

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NOAA Forecast

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Google Earth

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