| 1. |  | High altitude aerial photograph over Heart River flooding in Township 139N, Range 82W, Sections 24 & 25, and
Township 139, Range 81, Sections 19 & 30, Morton County, N.D. | Aerial photographs; Floods; Rivers; Railroad sidings; Railroad tracks; Railroad bridges; | High altitude aerial photograph over Heart River at flood stage in Township 139N, Range 82W, Sections 24 & 25, and Township 139, Range 81, Sections 19 & 30, Morton County, N.D. The Northern Pacific Railroad... |
