81048--Island of Guam, Territory of Guam Detailed coverage of Marianas Island of Guam Territory of Guam; Cocos Lagoon OceanGrafix provides mariners with the most up-to-date, NOAA-approved nautical charts ever offered Charts are printed only after an order has been received, ensuring the most up-to-date information Meets U. S. and international carriage requirements for commercial vessels, all notice to mariners corrections are applied. U. S. Coast Guard approved, Scale: 1:10,000, Size (inches): 34.82 X 48.25