NOAA Chart 11438: Dry Tortugas; Tortugas Harbor 21.00 x 24.77 (SMALL FORMAT WATERPROOF) Printed on high quality waterproof and tear-resistant material by NOAA Chart Agent, Paradise Cay Publications Paradise Cay Publications brand charts are sold exclusively by Ruby & Rudy's Books Always printed on demand using the most recent data from NOAA Prepared to be display quality. Shipped rolled in a cardboard tube.