Ian Tyson wrote the original, though Judy Collins brought it higher up the charts. I sang this in high school with Christine Riley.
When they flip over the album cover and show the notes on the back at about the 1:30 mark I was nostalgic for the times. Lots of folk albums looked like that on the back in those days, text-heavy. Nerdy people would remember the information without even trying, such as we are, and recall thoroughly useless bits decades later.