About fifty years ago, my brother and I were floating down the Nechako River in North Central BC. We got into some pretty good fishing and spent a little more time than we intended so we were finishing the trip in the dark (midnight). There were always some big salmon rolling next to the canoe and we had gotten pretty used to that but at one point, we must have startled a beaver which slapped the water right next to the canoe. My brother over reacted with the result being an upside down canoe. The next hour was pretty cold and the reception from my wife not much warmer since we were well past our arrival time. There were beaver houses along the river, about every half mile or so. The tributary creeks were always dammed. Not bad fish habitat. The beaver and the willows had a bit of a symbiotic relationship.The beaver ate the willows and the water helped it grow. Good moose habitat too. GD