2455 Old Penitentiary Road

Boise, ID 83712 (Next to the Old Pen)

Current Hours

Hours: 12-5 Friday & Saturday; Sundays 12:30-3:30.

Free Admission!

Tours and other programs available.

Idaho Mining Geology Museum

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Dig into Geodes

Idaho Museum of Mining and Geology 2455 Old Penitentiary Road, Boise, ID, United States

Let's Dig into Geodes and see what's inside! Join us at the Idaho Museum of Mining and Geology (IMMG), next to the Old Pen, for a fun time geode-cracking, an easy 40-minute geology-hike on the nearby hillside and a Museum Visitation. Geode-cracking takes place from 10am-1pm outside under shade canopies on the grass of the […]

$10

Museum Tour and Discussion

Idaho Museum of Mining and Geology 2455 Old Penitentiary Road, Boise, ID, United States

Participants are limited to 15 for this up-close and personal tour of the beautiful and small Idaho Museum of Mining and Geology. Tour begins at 11:30 AM. You will see Idaho rocks and minerals, a world-class meteorite exhibit, an authentic mining camp, Buzz Saw shark exhibit, Blacklight display, plica of Idaho's own dinosaur-the Oryctodromeus, plus […]

$5

Dig into Geodes

Idaho Museum of Mining and Geology 2455 Old Penitentiary Road, Boise, ID, United States

Join us for a fabulous time cracking geodes at the Idaho Museum of Mining and Geology (IMMG), 2455 Old Penitentiary Rd. Boise 83712. Be amazed at the surprise inside. Admission: Adult Non-members of the IMMG—$10 Children —$5 Museum members—Free Admission Every registered child receives one small geode at no cost! Best price in town to […]

$10