There is a rock quarry in Kirkwood Missouri known as Meramec Highlands Quarry Dee Koestering Park. It was a working quarry over 100 years ago. The 9.5 acre site is a nature park with walking trails located at 1703 Marshall Road in Kirkwood Missouri.
An amazing geological phenomenon unique to Missouri's St. Francois Mountains. On a misty day if you were hiking around the St. Francois Mountains in Missouri around the town of Ironton, You could happen upon a geological phenomenon, one and a half billion years in the making which look likes a train of pink circus elephants.