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** Use at Your Own Risk **
24L |
Grinnell Mountain |
10,284' |
Location: San Bernardino County, about 15 miles north-northeast of Banning, 103 miles from Los Angeles
Maps
| Auto Club | Los Angeles and Vicinity, San Bernardino Mountain Area |
| Forest Service | San Bernardino National Forest |
| USGS Topos | Moonridge 7½, San Gorgonio Mountain 7½ |
| Official HPS Maps | TPO file - Save to your computer then open with National Geographic TOPO! |
| Viewable JPG file - Approximately 1.4 megs | |
| GPX file or Google Earth KML file to download to GPS units and other map software (How to use GPX and KML files) | |
| Routes as shown on CalTopo using the above files (How to use CalTopo) |
Nearby Peaks: Lake Peak, Ten Thousand Foot Ridge
ROUTE 1
(USFS Adventure Pass may be required)- Distance: 10 miles round trip on trail and cross-country
- Gain: 2300'
- Time: 5-6 hours round trip
- Rating: Class 1, moderate
Original: Warren E. von Pertz and Al Campbell, February 1973
DRIVING ROUTE 1
- 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 1
- 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 2
(USFS Adventure Pass may be required)- Distance: 13 1/2 miles round trip on trail and cross-country
- Gain: 3550'
- Time: 6 hours round trip
- Rating: Class 1, moderate
Original: Warren E. von Pertz and Al Campbell, February 1973
DRIVING ROUTE 2
- 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 2
- 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.
SPECIAL CONDITIONS
Wilderness permits are required for all routes. They are issued at Mill Creek Ranger Station, 9 miles from Redlands on SR 38. Day use permits are self-issue on the day of the hike or by mail. Overnight permits must be acquired in person or by mail.
Mill Creek Ranger StationRoute 1, Box 264
Mentone, CA 92359
(909) 794-1123
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.
History of Summit Signature
Climbing Archives
Please report any corrections or changes to the Mountain Records Chair.