Looking at Ontario History Books from Harold Stiver
Harold is a Canadian photographer. He also writes about covered bridges and lighthouses (in Canada and the US).
Ontario's Old Mills - Harold Stiver - Flickr link found, but not active.
Descriptions of mill sites with driving directions and self guided tours. Includes a short history of milling in Ontario.
Ontario has over 150 Lighthouses and Stands. Nova Scotia is the only Canadian province with more.