Discover Fossils on Capitol Square Ohio Statehouse Hosts Fossil Tour

ohio statehouse in spring

Photo courtesy of the Ohio Statehouse Photo Archive

The Ohio Statehouse will celebrate Earth Day by offering a FREE fossil tour on Capitol Square. The special tour will take place Friday, April 19 from noon until 1 p.m. The tour will depart from the Map Room, located on the ground floor of the Ohio Statehouse. Participants will explore the building stones that make up the Ohio Statehouse and Senate Office Building. The tour will be conducted by Dale M. Gnidovic, Curator of the OSU Orton Geological Museum, and Mike Angle, Assistant Division Chief at ODNR Division of Geological Survey. While the event is free, participants are asked to RSVP to Luke Stedke at or 614/728-2130.

The Ohio Statehouse is constructed of Columbus Limestone. Columbus Limestone is of the Middle Devonian age and was named for the city where it has long been quarried. A large vein of Columbus Limestone formed in a north-south line, from the Glacial Grooves of Kelleys Island in Lake Erie, south to Columbus, Ohio. Four hundred million years ago the limestone was the sandy bottom of a tropical ocean that covered the state. Fossils of marine animals are abundant in Columbus Limestone and can be seen throughout the Capitol Square complex.

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