“A gazetteer associates geographic names (place names and feature names) with geographic locations and other descriptive information. … The Alexandria Digital Library (ADL) Gazetteer combines the U.S. place names from the U.S. Geological Survey's GNIS database, the non-U.S. place names from the National Imagery and Mapping Agency's GNS database, and other gazetteer datasets. The ADL Gazetteer item metadata is based on the ADL Gazetteer Content Standard; the feature types are based on the ADL Feature Type Thesaurus.”