The Schoonmaker Reef formed approximately 425 million years ago during the Silurian period. It is largely dolomite, a sedimentary rock of calcium magnesium carbonate (CaMg(CO3)2) that is similar to limestone. The reef is stratigraphically consistent with the Racine Dolomite, a formation in Wisconsin and Illinois. The exposed portion of the reef is in the Menomonee River valley in Wauwatosa, Wisconsin. It exists as a massive, rock hill that stretches in a 600-foot (180 m) outcrop. It is exposed on the lower 20 feet (6.1 m) of a 60-foot (18 m) bluff; the upper portion of the bluff is formed by glacial sediments left in the last million years. The reef contains a variety of fossils from Silurian period organisms, including trilobites.
The Schoonmaker Reef is a beautiful landmark in Wauwatosa, WI. The area behind the fence is blocked off and the nano-size geocache is on the eastern side of the gate. You can park on 62nd St or Martin Dr to find this geocache. Look on the fence. This is a micro/nano sized geocache. Good luck!
The sculpture studio is private property. The geocache is on public property. Please respect the neighbors and stay on public property and learn about the Schoonmaker Reef!
Confirmed in posiiton on 1/29/2022 by CO.