Who was an American writer responsible for a dissertation concerning  the towns and districts built near sediment formations around Lake Superior?
Iron Range Iron Range refers collectively or individually to a number of elongated iron-ore mining districts around Lake Superior in the United States and Canada. Despite the word "range," the iron ranges are not mountain chains, but outcrops of Precambrian sedimentary formations containing high percentages of iron. These cherty iron ore deposits are Precambrian in age for the Vermilion Range, while middle Precambrian in age for the Mesabi and Cuyuna Ranges, all in Minnesota. Similarly, the Gogebic Range in Wisconsin and the Marquette Iron Range and Menominee Range in Michigan. Natural ores and concentrates were produced from 1848 until the mid 1950s, when taconites and jaspers were concentrated and pelletized started to become the major source of iron production.
Charlotina Charlotina was the suggested name for a popularly proposed British crown colony which was to be established in America following the end of the Seven Years' War, in which Great Britain had acquired a large portion of New France in 1763. However, the proposal was met with little official enthusiasm, as the British government's Royal Proclamation of 1763 forbade the creation of new colonies in the Mississippi and Ohio Valleys. Had such a colony been founded, it would have included the region lying west of the Maumee and Wabash rivers; north of the Ohio River; east of the upper Mississippi River; and south of the Great Lakes. These boundaries would include portions of modern-day Minnesota, Ohio, Indiana, and the entirety of Michigan, Illinois, and Wisconsin. Charlotina would have included modern-day cities such as Chicago, Milwaukee, Toledo, Detroit, Fort Wayne, and parts of Minneapolis and St. Paul.