Lake-Union-Southwest-corner-w-GAS-5-4-1907-WEB May 26, 2013 1200 × 678 Lake-Union-Southwest-corner-w-GAS-5-4-1907-WEB Before the fill and, most likely recorded from the Westlake trestle. Part of the cover is here used by Western Mill for its mill pond. The tank is on the west side of 9th Avenue near Republican Street. (Courtesy, Michael Maslan)