Complied from survey of Upper Mississippi River from St. Paul to Grafton - made in 1878 and 1879 under direction of Bvt. Lt. Col. F. U. Farquhar, U.S.A. Major, Corps of Engr's; with additions from notes and surveys done under the direction of Bvt. Maj. Gen'l G. K. Warren, U.S.A. Major, Corps of Engr's, Col. J. N. Macomb, Corps of Engr's and Major A. MacKenzie, Corps of Engr's. Drawn under the
I had this picture made from one taken by Art Colwell. Art was US Govt. inspector of boat engines on lower Missouri, and Miss. River from mouth of MO river to Keokuk dam about 1910-1920.