This is a very nice and detailed map of the United States, including early territorial borders in the Trans-Mississippi West. Massive Minnesota Territory, spelled Minnisota, pre-dating Dakota is shown.   An even larger Nebraska Territory extends to Texas and Indian Territory, which is rather oddly configured.  New Mexico has a pre-Gadsden Purchase border with Mexico.  Oregon and Washington extend to the Rocky Mountains.  Lots of topographical detail.  Color-outlined states and territories.