Fairgrounds
Fairgrounds along the route
The following is not a complete list but has covered us on this trip many times.
From north to south;
Shelby, MT -
Maria's Fair,
619 W Marias Fair Rd, Shelby, MT
406-434-2692
Great Falls, MT -
The King's Arena,
50 Foothills Ln, Great Falls, MT
406-750-7855
Helena, MT -
Lewis & Clark Fairgrounds
989 W Custer Ave, Helena, MT
406-457-8516
Dillon, MT -
Beaverhead County Fairgrounds,
707 S. Argenta St, Dillon, MT
406-660-2792
Pocatello, ID -
Bannock County Fairgrounds
10588 Fairground Dr., Pocatello, ID
208-237-1340
Tremonton, UT -
Box Elder Fairgrounds
320 N 1000 W, Tremonton, UT
435-695-2551
Spanish Fork, UT -
Spanish Fork Fairgrounds
475 S Main St, Spanish Fork, UT
801-804-4616
Richfield, UT -
Sevier County Fairgrounds
410 E 200 S, Richfield, UT
435-896-5385
Panguitch, UT -
Garfield County Fairgrounds
25 South 200 East, Panguitch, UT
435-616-2282
Flagstaff, AZ -
Fort Tuthill County Park
2446 FOrt Tuthill Loop, Flagstaff, AZ
928-679-8000
If you find yourself too far away from any of the places in my list, check the links below to find the name of the county closest to you. Once you know the county, search for the County Fair or State Fair using google and that handy phone.
I've included a link to some maps that may be helpful and also added maps with key county fairs in each state you traverse.