Corp of Engineers Ditch System built in 1950s - This is where TEAM BEAVER had Massive Dam!

United States Army Corps of Engineers Info:
https://en.wikipedia.org/wiki/United_States_Army_Corps_of_Engineers
Champlain Canal Map. This water source (waterway) is listed:
http://www.canals.ny.gov/maps/
Series of short videos along the ditch from Pond to Route 196. There is a playlist with all videos. It is on Channel Playlist page.