We are located at

2455 Old Penitentiary Road

Boise, ID 83712 (Next to the Old Pen)

Current Hours

We hope to have Special Events this winter. Click "CALENDAR" below to see any upcoming events. Regular hours will resume in Spring 2022. Check this website for updates.

Free Admission!

Tours and other programs available.



Dig into Idaho! Celebrate Idaho Archaeology & Historic Preservation Month

Details to come!


ANNUAL Rock Party

A celebration of Idaho’s mining and geologic history with activities for children and adults. Activities include 12+ activity stations, museum mini tours, hillside hikes, mineral identification, gold panning, food, and MORE! Every child walks away with a certificate and a bag of goodies!!! 

$5 Adults, $2 ages 4-17
Free for IMMG Members and kids 3 and younger

Sponsored in part by a grant from the Idaho Humanities Council.


Celebrate National Public Lands Day

Let’s celebrate National Public Lands Day by a morning hike up to Table Rock with our fellow geology and history lovers!

Coffee and Donuts will be served at 8:30 am.


Dig into Geology! Celebrate Earth Science Week and National Fossil Day

Geosciences are for everyone! Celebrate Earth Science Week and National Fossil Day with the Idaho Museum of Mining and Geology and Orma J. Smith Museum of Natural History. Lots of Idaho rocks and fossils, lecture, and activities such as fossil rubbing, fossil molds, scavenger hunt, and more!