2455 Old Penitentiary Road

Boise, ID 83712 (Next to the Old Pen)

Current Hours

November Saturdays 1pm-4pm. Closed for the winter beginning December.

Free Admission!

Tours and other programs available.

Field Trips

Sadly, because of the pandemic, we are currently unable to offer field trips. We know that these are one of the most popular offerings of IMMG, but it has not been possible to arrange leaders and trips in the uncertainty of virus restrictions and public concerns about group activities.