Urban fossils of Ottawa

59 Sparks Street (Post Office)

Location: façade of post office
Rock: limestone
Age: Ordovician
Fossils: crinoids

Information and photographs: Quentin Gall. Dept. of Earth Sciences, University of Ottawa
More information: A Walking Guide - Ottawa’s Building and Monument Stones
Stacks Image 7202

Post Office building (1938-1939) with façade of anorthosite, Stanstead granite and Queenston limestone

Stacks Image 15947

Cross-bedded crinoid-rich Queenston Fm. limestone