2455 Old Penitentiary Road

Boise, ID 83712 (Next to the Old Pen)

Current Hours

IMMG has now closed for the Season. Check back in Spring for the latest plan to open for 2021.

Free Admission!

Tours and other programs available.

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December 2020

Santa’s Rock Shop

December 14 @ 12:00 pm - 4:00 pm

Santa’s Rock Shop! Drop by the Idaho Museum of Mining and Geology, 2455 Old Penitentiary Rd, on Monday, December 14, noon-4:00pm. Find gifts for your special rock hounds, including books, jewelry, polished stones, fossils, kid stuff and more. Admission is FREE.  Masks required--ages 3 through adult. Same day as Dollar Day at the Old Pen!

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