Ancient Monuments of the Mississippi Valley

The fact of the existence, within the valley of the Mississippi river and its tributaries, of many ancient monuments of human labor and skill, seems to have escaped the notice of the adventurers who first made known to the world the extent and fertility of that vast region. Except some incidental allusions by La Vega, and the Portuguese chronicler of De Soto's unfortunate expedition, to structures bearing some analogy to those of the West, (and which seem to have been occupied, if they were...