1936. Project: ST-70 Scale: 1:1200 Drainage Basin Connects to sheets: 58, 61 Image is from a copy of the original on Mylar. Drawn by M. Hauseu 6/24/36 ap...
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1936. Project: ST-70 Scale: 1:1200 Drainage Basin Connects to sheet: 76 Image is from a copy of the original on Mylar. Drawn by M Houser 7/23/36 approved.