Old Toronto: Walking on Cedar?

Time for an Old Toronto pic! This one is from 1899 and is labelled Harbord looking west to Robert. But the most interesting thing about is that it says "cedar road."
I'm trying to figure out if that means that the road literally is made of cedar, which would be a new one on me. I can find nothing online about it, but could the circles here be pieces of cedar? Intriguing.
Cheers,
Vanessa