This data set is part of a collection of real estate data concerning current and historic military installations whose real property interests are managed by the U.S. Army Corps of Engineers. This data set covers installations within the United States, including Alaska and Hawaii, and installations in territories of the United States. Source data used to produce it includes paper charts and maps, legacy data from the Real Estate Management Information System (REMIS) and legal descriptions. Methods used include coordinate geometry entry (COGO) from legal descriptions, coincident features, scanned drawings, aerial imagery and other parcel data. Details pertaining to the sources methods and accuracy of specific features can be found in the feature level metadata associated with the individual features.