One aspect of US Natural History that I think is overlooked are impact craters beyond Crater Lake in Oregon. One spot in the Midwestern US I recently came across is the Decaturville Crater Impact area in Missouri.

Along Missouri Route 5, drivers would likely noticing the rising and lowering elevation while traversing the highway. Because this is an overlooked natural feature, I think it'd be a great candidate as a Natural National Landmark.

#missouri #gis #geology #midwesternus #impactcrater #meteor #naturalhistory #history #maprelief #cartography #elevation #googleearth #nationalparkservice #unitedstatesofamerica