Karen if you are near any of the National Parks when you travel to Idaho they are also all worth visiting.
You reminded me to check with my DH to find out if he has our small telescope in the motorhome. One of our sons was really into astronomy and has what to me is a large telescope that he brought along on one of the camping trips we went on together, it was amazing to look at planets thru his. Wonderful to be able to enjoy yours on a trip.
We have wintered in New Mexico for around four or five years and hoping to soon be able to do so again in the future, you have many wonderful parks we have been to White Sands many times it is fun to walk the sand dunes.