2455 Old Penitentiary Road

Boise, ID 83712 (Next to the Old Pen)

Current Hours

IMMG has opened for the season. Saturday only 12-5.

Free Admission!

Tours and other programs available.

Family Fun – Dig into Fossils

Let’s learn about Idaho Fossils!

Join us for a fun afternoon learning about fossils. Explore Idaho fossils, different types of fossilization, and create your own fossil.  Kids and museum members Free, Non-members $5.

Registration required: Dig into Fossils

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.