Geographical Features, prefixed G in MashBill, are rivers and mountain ranges which extend beyond or do not conform to the political boundaries used to define Places. Latitude and longitude will not be assigned to these features. Creeks, individual mountains, and other local features will not be annotated using this item type. Use of Geographical features category should be rare and limited to major rivers and mountain ranges (e.g. Cumberland River, Kentucky River, Mississippi River, Allegheny Mountains). Names should reflect contemporaneous usage and not include ahistorical categories (e.g. Appalachian Mountains).