| 1. |  | Workmen laying rails for Killdeer branch of Northern Pacific Railroad near Dunn Center, N.D. | Railroads; Railroad ties; Railroad construction & maintenance; Railroad construction workers; | Men work to lay rails on the Killdeer branch of the Northern Pacific Railroad between Mandan and Killdeer around Dunn Center, N.D. A freight car loaded with railroad ties is visible further up the tracks.... |
