Hope others will feel free to join in with their favorite roads and attractions.
Riding to or from the west many times I have taken this route..
Heading to Minneapolis on Hwy 12 here are some spots to visit;
1. The Petrified Forest in Lemon SD. Admission is free, donations accepted. The museum has a bunch of neat stuff that you can spend way too much time looking at. The people that run it and the gift shop are very nice.
2. Great Plains Family Restaurant in Mobridge SD. Only open 7 a.m. to 2 p.m. they have fantastic pie made by the grandmother of the family that owns it. If you are there on a Sunday they have this really good soup called knoephla, try it.
3. Indian Creek Recreation Area on the east side of Mobridge is a nice place to camp. So is Mina State park just west of Aberdeen.
4. At Ortenville MN stop to visit the Big Stone County Historical Society Museum where they have the Muskegon. A ship that lie on the bottom of Big Stone Lake for 94 years.
From Ortenville you can continue east on Hwy 12, my usual route, or go south on MN Hwy 75 to MN Hwy 7. The second option is my preferred way to leave town as I head west.
Hwy 12 will become I-394 you will follow it to I-94, continuing East. Exit on to Hwy 280 then take the Larpenteur Ave Exit. Go east on Larpenteur about 2.5 miles and the fairgrounds will be on your right. Or Continue on I94 to the Snelling Ave Exit, go north on Snelling to the Fairgrounds. Plan to arrive about 8 p.m. Wednesday evening, set up your tent and walk across the street to Stout's for a burger or pizza and a cold drink.
Twin Cities Riders go ahead and chime in here with other ideas.