 Queenston Formation

The Queenston Formation is a geological formation of Upper Ordovician age (Maysvillian to Richmondian Stage), which outcrops in Ontario, Canada (along the northern and eastern flanks of the Niagara Escarpment, as well as east of Ottawa) and New York, United States (just south of Lake Ontario).A typical outcrop of the formation is exposed at Bronte Creek just south of the Queen Elizabeth Way.