Trip from Delaware to Utah National Parks and Grand Tetons

We went to Yellowstone in 2016 from Reading,Pa. We took I'70 then I-72 to Missouri RT 36. Nice 4 lane road,65mph. Then I-29 to Nebraska Rt6 to I-80. Right on Missouri RT 36 is Pershing State Park.Electric hookups, showers $22 a night. We enjoyed stopping at the Harold Warp Pioneer Museum in Minden,Nebraska. If you like history,old cars,trucks,tractors etc, they have them. There is also a campground there. $35 a night for full hookups and the price includes one ticket to the museum.