Thanks all for the kind comments. I really like reading the trip reports for ideas so it was enjoyable having something to add.
The Craters of the Moon National Monument were neat. It is a huge field of exposed lava and lava cones which are desolate and extremely rugged. Walking even a couple hundred yards would be extremely difficult. You can hike up and look into small craters, and lava vents. It was worth the detour to us.
There is no offroad opportunities but there is a small campground inside the Monument.
As an educational point for us, due to plate tektonic shifts over time, the same volcanic activity that caused these eruptions is now the geothermal activity that is causing the current Yellowstone geyser activity.
2008 SMB EB-52, Quadvan 4x4, 6.0 PSD SOLD
2017 Ford Transit T250 148WB mid-roof w/ Quadvan 4x4