Not sure how far east you wanna go while up north but id recommend hitting rapid city sd and the black hills. its hard to describe the natural beauty with words; theres a ton of stuff to do in the summer months, and few local mountain roads that are pretty fun. theres a few local guys who shred pretty hard too. a few photos from my trip out there in june.
feel free to pm me if you have any questions about it or if you find your self in the omaha area!