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.

The IMMG Gems

  • Fred Shute
  • Don Haas
  • Ed Fields
  • Dan Yanke
  • Ken Swanson
  • Robert (Rich) Richins
  • Ed Romack
  • Robin (Sandy) McRae
  • Joe Icenhower
  • Bill Ewing
  • Sue Whitted
  • Marilyn Allen
  • Marjorie Ewing
  • Joe & Lorie Icenhower
  • Jim Lindsay
  • Terry Maley
  • Jim Carpenter
  • Shirley Ewing
  • Don Adair
  • Coyote Short
  • The Fujii Family
  • Leonard Hedge
  • Stewarts Gem Shop
  • Don Adair
  • Clyde Stroup
  • Allebaugh Collection
  • Greg Sandmeyer
  • Jim Koonce
  • Mary Hare
  • Michele Gray
  • Patrick Cavanaugh
  • Gary Sauerwein
  • Jim Thompson Remodeling
  • The Home Depot
  • Mesa Moving & Storage
  • Michael Slanda Painting
  • Don Adair
  • Dr. Terry Maley
  • Clyde Stroup
  • Dr. Craig White
  • Dr. Paul Link
  • Ander Sundell
  • Mark Ferns
  • Shawn Willsey
  • Dr. Reed Lewis
  • Lois McDonald
  • Dr. Roy Mink
  • Dr. Walt Snyder
  • Dr. Spencer Wood
  • Dr. Brittany Brand
  • Dr. Sam Matson
  • Dr. Virginia Gillerman
  • Dr. Todd Shallat
  • Troy Lambert
  • Dr. Michael Morrison
  • Gary Eller
  • Midas Gold