"This sheet falls within NB 38-15, 1501, 1:250,000 and NB 38-115, Y630, 1:100,000." Includes glossary, location map, and boundary index. "NIMA REF. NO. Y921XBELEDWYNE." "NSN 7643014033781." "This map is red-light readable." "Caution: This product may not conform to the horizontal accuracy requirements. Extreme caution should be used when making measurements."