Browse by place
Most declassified records on the site name a place. The map below counts how many case files reference each U.S. state, shaded darker to brighter with the record count. Blue Book sightings concentrate the count around a handful of states. Ohio leads with 1,007 records. Pick a state to read the files that name it.
51 states and territories carry records. Most-referenced: Ohio (1,007).
Darker tiles carry fewer records, brighter tiles more. Tiles are laid out in the familiar U.S. grid, not to geographic scale.
Every U.S. state and the District of Columbia that appears in the archive, ranked by how many case files name it. Each opens the filtered search for that place.
State counts are derived from places extracted from each declassified document. A single case that names more than one state appears under each. Non-U.S. locations are not shown on this map. All source records are public-domain U.S. government material held by the originating agencies and archives.