Mushroom Rock | Dakota Sandstone Concretion |
O
ut in the middle of Kansas, small areas of exposed rock concretions formed during the Cretaceous geological epoch provide a glimpse into the past. A global warming period occurring 145 million years ago, the Cretaceous was an era with a relatively warm climate and high eustatic sea level. In several iterations, these unique sandstone formations feature hard rock perched atop softer rock. Over time, the softer rock underneath eroded away leaving a “mushroom” cap balanced on a stalk.
“I am... a mushroom; On whom the dew of heaven drops now and then.” - John Ford
