A distributional atlas of Upper A distributional atlas of Upper Mississippi River fishes distributionalat73smit Year: 1971 Minn. Fig. 1 .—The upper Mississippi River and its major tributaries. The numbers refer to navigation pools and their downstream locks and dams. Note the absence of a pool 23 and of locks and dams below dam 26 in the unimpounded river, referred to as B-26.

---

Size: 1027px × 1947px
Photo credit: © Bookend / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: archive, book, drawing, historical, history, illustration, image, page, picture, print, reference, vintage