Large Preserved Historic Vessels
The 1990 Inventory of Large Preserved Historic Vessels was prepared by the National park Service to identify the number, types, and condition of the large preserved historic vessels in the United States as of the date of publication (1990). The inventory contains information on 244 large preserved historic vessels.
The definition of "large preserved historic vessels" that was used for this inventory was any vessel greater than 40 feet in length and/or 20 tons admeasurement.
To be considered historic, vessels had to be listed in, determined eligible for, or be likely to be considered eligible for listing in the National Register of Historic Places.
the Maritime Heritage Program's 1990 Inventory of Large Preserved Historic Vessels can be found online as a PDF document in the National Park Service's data and publications repository.