Grandmother Mountain

Grandmother Mountain is a 6,371 ft / 1,942 m mountain peak near Osburn, Idaho, United States. Based on peakery data, it ranks as the 1297th highest mountain in Idaho and the 17341st highest mountain in the United States. The nearest peaks are Grandfather Mountain, Marks Butte, Cornwall Point, Windy Peak, Crater Peak, and Hobo Hill. See the Grandmother Mountain map, 3D fly around, and the Grandmother Mountain photos to get a better sense of the mountain.

Grandmother Mountain SUMMIT LOG peakery first ascent by douglas.leedy

1 member reports climbing or hiking to the summit, most recently on Jul 29, 2012. Below is the trip report and shared pictures from their climb. Based on the summit log, the most popular climbing route and hiking trail to the summit is Tr 275.

Routes Used trails & approaches

100% Tr 275


SNAPSHOTedit info


6,371 ft / 1,942 m


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Height Rank

#1302 in Idaho

#17889 in United States


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Idaho, United States

Summited by

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Nearest peaks see on map »