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.

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Willow Creek Jasper Mine Field trip

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

This field trip to a privately owned Jasper Mine is in your backyard. If you love adventure, a rough road, and discovering jasper in thunder eggs, this trip is for […]

$20

Geology Hike to Eagle Rock

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

Eliza Schulz will meet hikers at 7:45am within steps of the IMMG in the Old Pen dirt parking lot near the Ridge to Rivers trail sign. She will lead you […]

$5

Willow Creek Jasper Mine Field Trip

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

This field trip to a privately owned Jasper Mine is in your backyard. If you love adventure, a rough road, and discovering jasper in thunder eggs, this trip is for […]

$20

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 […]

$10

Mineral Identification

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

Need help identifying rocks you’ve found or purchased? Coyote Short, Professional Geologist, can identify rocks, minerals, fossils and Native American artifacts. Bring in your specimens and she will help you […]

$5

Geology Hike to Eagle Rock

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

Eliza Schulz will meet hikers at 7:45am within steps of the IMMG in the Old Pen dirt parking lot near the Ridge to Rivers trail sign. She will lead you […]

$5

Willow Creek Jasper Mine Field Trip

This Museum field will take you to a privately owned Jasper Mine in your own backyard. If you love adventure, a rough road, and discovering jasper in thunder eggs, this […]

$20

Willow Creek Jasper Mine Field Trip

This Museum field trip departs at 7:45am to a privately owned Jasper Mine in your own backyard. If you love adventure, a rough road, and discovering jasper in thunder eggs, […]

$20

Mineral Identification

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

Need help identifying rocks you’ve found or purchased? Coyote Short, Professional Geologist, can identify rocks, minerals, fossils and Native American artifacts. Bring in your specimens and she will help you […]

$5