Here's one that I have of the Trans-Canada. My best guess would be late 1940s and perhaps the location would be northwestern Ontario or the Whiteshell. It reminds me a lot of those numerous twisty abandoned remnants of the old TCH route that used to be visible alongside Highway 17 between West Hawk Lake and Kenora.
That's Highway 17 through the Bar River Flats east of Sault Ste. Marie.
That's Highway 548 on St. Joseph Island where my family came from.
That's the Highway 548 bridge going from Highway 17 on the mainland to St. Joseph Island (right), with its breathtaking view of the St. Joseph Channel. I'm old enough to remember when it was just a ferry.