The document discusses the history of the Proteus Gowanus site, noting that a 1766 map by Bernard Ratzer showed glacial ridges left by prehistoric glaciers in the Gowanus Canal area. It also notes that Brouwer, a German mercenary working for the Dutch in Brazil, built one of the first Tidal Mills in America on the Proteus site in 1645.

1. Feet Proteus Gowanus
0 1,000
1766
Bernard Ratzer’s Survey map of the Gowanus Canal area for the British Colonial Administration,
shows the glacial moraine ridges left by receding prehistoric glaciers. Brouwer, a German mercenary
working for the Dutch in Brazil, built one of the first Tidal Mills in America here on the Proteus site in 1645.