Authors: Ambursen Hydraulic Construction Co.

  • The Ellsworth Dam On The Union River At Ellsworth, Maine: Property Of The Bar Harbor And Union River Power Company (1908) — Ambursen Hydraulic Construction Co.

    The Ellsworth Dam On The Union River At Ellsworth, Maine: Property Of The Bar Harbor And Union River Power Company (1908) — Ambursen Hydraulic Construction Co.