The Latter-day Saints' emigrants' guide [electronic resource] : being a table of distances, showing all the springs, creeks, rivers, hills, mountains, camping places, and all other notable places from Council Bluffs to the valley of the Great Salt Lake : also the latitudes, longitudes and altitudes of the prominent points on the route, together with remarks on the nature of the land, timber, grass, &c. : the whole route having been carefully measured by a roadometer, and the distance from point to point, in English miles, accurately shown / by W. Clayton.