The U.S. relinquished its assert to all land south and west on the Arkansas River and south of 42nd parallel north and west in the 100th meridian west as part of its purchase of Florida from Spain with the Adams-Onís Treaty of 1819. The treaty took effect on February 22, https://high-end-homes-villa83615.blogocial.com/the-how-to-invest-in-real-estate-in-northern-colorado-diaries-64933041