Sorry, I don't know anything about that area, but others here probably do. Here's a link to GW Regional forums, which have Idaho and Utah garden forums. Posting there may help. If you're taking your computer, it helps to search for whatever town with junk, or second hand, thrift store, swap meet, etc. Asking locals will probably get results. We find lots of good stuff that way. Have fun on your trip. Linda

Here is a link that might be useful: Regional Gardening Forums

Lots of mountains in Utah,we took 15 & stayed at St. George or Provo & then over to Evanston Wyo on 80 & there are a lot of mountains in that state, couple of times followed a semi through snow or rainstorms or fog. I'd stick with main roads-Interstates that is for sure!! Bridal Veil Falls are beautiful!! We always went in Aug, July or Dec. on way to So. DAk. Utah has great sales in Aug as they have "Crazy Days" across the state & items are out on sidewalks in front of stores. Never went Antique hunting their tho, sounds like fun!!Jan