In the northeast corner of the Sunflower State you'll find Kansas City, with its cosmopolitan diversions, as well as several small historic towns (including forgotten ghost towns) along the Oregon Trail, and the Pony Express route. Much of the region, some of which was carved out by a glacier, is dominated by steep-bluffed rivers and rolling hills. It includes Washington, Marshall, Nemaha, Brown, Doniphan, Clay, Riley, Pottawatomie, Jackson, Atchison, Leavenworth, Wyandotte, Dickinson, Geary, Morris, Wabaunsee, Shawnee, Douglas, Franklin, Johnson, and Miami counties.