Collier's New Encyclopedia (1921)/Beaver Dam
BEAVER DAM, a dam built by a beaver across a stream likely to run off in summer. It is generally formed of drift wood, green willows, birch, poplars, and similar materials.
Edition of 1921; disclaimer.
BEAVER DAM, a dam built by a beaver across a stream likely to run off in summer. It is generally formed of drift wood, green willows, birch, poplars, and similar materials.