1936. Project: ST-70 Scale: 1:1200 Drainage Basin Connects to sheets: 45, 47 Image is from a copy of the original on Mylar. Drawn by Jack Fellows 4/13/36...
1936. Project: ST-70 Scale: 1:1200 Drainage Basin Connects to sheets: 47, 49 Image is from a copy of the original on Mylar. Drawn by M. Hauseu 5/1/36 app...
1936. Project: ST-70 Scale: 1:1200 Drainage Basin Connects to sheets: 48, 50 Image is from a copy of the original on Mylar. Drawn by M. Hauseu 5/22/36 ap...
1936. Project: ST-70 Scale: 1:1200 Drainage Basin Connects to sheets: 49, 51 Image is from a copy of the original on Mylar. Drawn by M. Hauseu May 1936 a...
1936. Project: ST-70 Scale: 1:1200 Drainage Basin Connects to sheets: 50, 52, 54 Image is from a copy of the original on Mylar. Drawn by M. Hauseu 5/18/3...
1936. Project: ST-70 Scale: 1:1200 Drainage Basin Connects to sheets: 51, 53 Image is from a copy of the original on Mylar. Drawn by M. Hauseu 5/20/36 ap...
1936. Project: ST-70 Scale: 1:1200 Drainage Basin Connects to sheet: 55 Image is from a copy of the original on Mylar. Drawn by Bruce H. Larrabee 5/22/36...
1936. Project: ST-70 Scale: 1:1200 Drainage Basin Connects to sheets: 54, 56 Image is from a copy of the original on Mylar. Drawn by R.W. Morris 5/27/36 ...