The most striking feature with regard to Detroit, in a commercial point of view, is her admirable location, which constitutes her the metropolis of a vast region, than which no city off the seaboard can boast one equally grand or important. The region embraces a circuit of some three thousand miles, composed of land and water, which both seem to vie with each other in contributing to the material prosperity of our city, while every interest involved is benefited in some degree by her. In the far north, where the rugged coast of the upper peninsula is lashed by the waters of the monarch of lakes, Detroit enterprise assists in redeeming the hidden treasures of the earth from their state of profitless inertion. There is not a hardy delver in the mines who is not familiar with the skill of Detroit machinists, nor an echo in all the majestic wilds skirting that noble expanse of waters, that has not been awakened by Detroit steamers. Further down upon the limpid waters of Lake Huron, where the army or rather the navy of fishermen set their nets for the capture of the finny tribes, here, too, our city possesses an interest almost as direct as if the canvas of their tiny crafts were spread within sight of her spires, the product comprising one of the most important staples in her multiform commerce. Last, but not least, is the great lumber region with which the prosperity of Michigan is so largely identified. The population of this region, as well as of the others we have referred to, raise almost literally nothing for their own consumption, their respective pursuits being inconsistent with that of tillers of the soil, so that in addition to the usual stores required by farmers, they have to purchase their breadstuffs and similar supplies. The bulk of these are bought of our dealers, this being not only the most convenient, but the cheapest and best market, as is amply proven by experience.