About Grandmother Mountain Wilderness Study Area
In Idaho, BLM manages over 17,000 acres of public lands in the Grandmother Wilderness Study Area. The terrain varies from heavily forested drainages to bare peaks and several high mountain lakes. Elevation ranges from 4600 feet in the Lund Creek drainage to 6800 feet on Widow Mountain. Prominent activities here include hiking, hunting, fishing, cross-country skiing, camping and nature observation.
Things to do
When to go
Low confidence for this location; local conditions may differ.
Weather data & source
Each figure averages the highlighted months. 2018–2023 averages, not a forecast. Wet days estimate days with at least 1 mm of rain or snow using a calibrated ERA5 threshold. Contains modified Copernicus Climate Change Service information. Weather data by Open-Meteo.com (AWS Open Data, CC BY 4.0). ERA5 via Open-Meteo AWS Open Data
Plan your visit
Grandmother Mountain Wilderness Study Area is managed by Bureau of Land Management. Check current conditions, permits, and reservations before you go.
See it on Recreation.gov →