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 ...
1936. Project: ST-70 Scale: 1:1200 Drainage Basin Connects to sheets: 55, 57 Image is from a copy of the original on Mylar. Drawn by M. Hauseu 5/29/36.
1936. Project: ST-70 Scale: 1:1200 Drainage Basin Connects to sheets: 56, 59 Image is from a copy of the original on Mylar. Drawn by M. Hauseu 5/29/36 ap...
1936. Project: 10-197 Scale: 1:1200 Connects to sheets: 20,. 22 Image is from a copy of the original on Mylar. Drawn by S. Belihound July 1936 approved.
1936. Project: 10-197 Scale: 1:1200 Connects to sheets 21, 23 Image is from a copy of the original on Mylar. Drawn by M. Hauser July 1936 approved Book N...