I-90 Chicago-Missouri River

Since Chicago we've been driving on the I-90 with only ocasional small
detours. It took us through Illinois, Wisconsin, Minnessota and today
we arrived in the beautiful state of South Dakota. Just before sunset
a thunderstorm build up on the horizon, just as we left the I-90 for
what is called a 'scenic byway' along the Missouri River. And scenic
it is indeed, especially if you see the Missouri, the surrounding
prairie, clouds, thunders, rain, the setting sun, all at the same time
in a magnificent panoroma of thousands of shades of green, blue,
yellow, and red.

Tonight we're staying at a camground in an Indian reservation
overlooking the Missouri and tomorrow we'll head back to the I-90
towards the Badlands National Park.