But a discovery Murchison made while he was sitting in his car can offer clues about where the water in the city, and on the island as a whole, goes when there's just too much of it. Am I in a river?

As for the river that used to run through Highway 40 where Murchison was, it still exists. The eight-kilometre tributary called Rivière à l'Orme happens to be the last, mostly intact river on ...