Yep, here is a pic of the usually dry Rillito River in Tucson during a big monsoon season -
It's a bit late here, but we just got our second monsoon storm of 1/2 inch tonight and the Colorado River toads are out and croaking away...:^)
Campbell and the Rillito. I remember that flood, the bike trail was a mess for months after. The sands on the bottom got all shifted and the “low flow” path changed. About 100 yards to the right of this picture a tree stump the size of an Econoline “appeared” with this flood. Still there the last time I hit that chunk of the trail.