This plaque in Bala, Ontario suggests that the Precambrian Shield was formed some two billion years ago and is among the oldest of rock formations on the earth’s crust (photo /C.J.Humber)

The material for most of the buildings crafted in early Ontario came from the earth’s crust. Limestone, sandstone, granite and marble are representative of this material as were clay and gypsum. Early Ontario communities situated along provincial highways still reflect the beauty crafted by 19th century tradesmen:

1.Hamilton                                          2.Galt
3.Windsor                                                                4.Brantford
 5.Brockville                                                       6.Trenton (1-6/C.J. Humber Collection)