We have most of our Boston to Seattle to LA trip planned, but need help in the middle. Gonna ride from Boston to Albany, NY then take Erie Canal trail to Buffalo. From Buffalo we'll follow AC Erie Connector/North Lakes to WI. We don't want to follow Northern Tier maps through MN, ND, MT, prefer going through MN, SD and WY to see Badlands, Black Hills, Tetons, etc. At that point we'll follow TransAm trail to Missoula, then No. Tier trail to Anacortes, WA Parks loop, then Pacific Coast down to SoCal.

Would appreciate any advice for roads/route from central WI (we have cousins on a dairy), through SD and WY to join w/ TA trail at Yellowstone.