nashua, nh / usa - june 05, 2020: mine falls canal at mine falls park, is in the nashua manufacturing company historic district

river waterway water canal reflection bridge tree reservoir lake pond nature flower channel landscape park walkway autumn tourism nashua usa june 05 2020 mine falls located part manufacturing company historic district infrastructure hydro dam hydroelectric hydropower energy transportation transport travel structure man made outdoors summer architecture sky clouds old concrete passage editorial historical technology engineering