My dog friend, Susan Smith, from Oklahoma came to see Montana, Idaho, and North Dakota. So I gave her the Fast and Furious Tour. Susan took most of the pictures because I was driving and driving and driving.
Day 1: Lewis and Clark Caverns and Museum of the Rockies
Day 2: 
Heart Mountain, Wyoming
 Day 3: Yellowstone National Park - Day 1
Missed a Grizzly by about 1 minute. I was trying to park in the "right" spot. Missed a black bear momma and her cubs by about 1 minute.  Finally something that wasn't moving.
Mammoth Hot Springs
Norris Geyser Basin
West Yellowstone to Driggs, Idaho
Day 4: Yellowstone National Park - Day 2
Grand Tetons  
Old Faithful Basin 
Mud Volcano Area
Hail Storm
and the last stop