I've been thinking over the summer about the nature of this blog. It's called the Beachburg Sub, named after a Canadian National subdivision that once stretched from central Ottawa into the city's distant northwest hinterland, all the way up to Fitzroy Harbour, into the Pontiac Region in Quebec and beyond. The tracks are all gone past Nepean Junction.You know the story. Canadian National, since taking over the Ottawa Central Railway's operations years ago, has gradually shrunk its footprint in the city to something that is almost negligible. My point is not to get into this history; it's to point out...