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Grandmother and Grandfather Mountains route map
Difficulty: DifficultOut and Back

Grandmother and Grandfather Mountains

Clarkia, Idaho

8.3 mi

Distance

2,146 ft

Elev. Gain

Out & Back

Route Type

Difficult

Difficulty

About This Trail

Grandmother and Grandfather Mountains is an out-and-back trail in St. Joe National Forest, managed by the United States Forest Service, in Shoshone County, Idaho. It is 8.3 miles long and gains 2,146 feet. The nearest town is Fernwood, Idaho, about 16 miles away in a straight line.

From the trail data on this page. For conditions and closures, see official sources.

Trail Conditions

Trail Conditions

Unknown

We have no current condition data for this trail. Check with the operator before you go, and submit a report below if you've been recently.

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Elevation Profile

Min:1,708 ft
Max:1,931 ft
Gain:654 ft
Loss:654 ft
Elevation profileA line rising and falling between 1,708 ft and 1,931 ft across 8.3 mi along the route, drawn from start to end.1,708 ft1,782 ft1,857 ft1,931 ft0.0 mi2.1 mi4.1 mi6.2 mi8.3 mi

Elevation at the labelled points along this route
PointDistance from startElevation
Start0.0 mi1,784 ft
High point2.6 mi1,931 ft
End8.3 mi1,784 ft

Trail Details

Route Type
Out & Back

Official sources & verification

Managed by United States Forest Service

Verify before you go

Managing agency

Where it is

Nearest town:
Fernwood, ID · about 16 mi away
County:
Shoshone County, ID
Jurisdiction:
St. Joe National Forest · United States Forest Service

Nearest town and county from U.S. Census Bureau place records and county boundaries.

We display cached information from agency feeds. Hours, fees, permits, closures, fire restrictions, and conditions change without notice. Outdoors is not the permitting authority. Confirm current conditions for this trail using the links above before you go — you are responsible for compliance. Last verified by us: May 23, 2026. Our copy is more than a month old — please reconfirm with the agency before relying on it.Spot an error in our data?

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Legacy import — verify before navigating

Path geometry came from our pre-launch legacy database. Routes have not yet been re-verified against the operator and may differ from the actual trail.

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