A reconnoissance of the Minnay Sotor Watapāh; or St. Peter's River to its sources / made in the year 1835 by G.W. Featherstonhaugh, U.S. geologist.Featherstonhaugh, George William, 1780-18661835]Includes Indian and French terms.Includes maps of "Minnay shoshoh chrray; or Great Hills of the Missouri," and "Chrrah tanka; the Great Hills or Coteau De Prairie."Relief shown by hachures.Shows points of interest and topography.cartographic