Air navigation chart V30 (series). 4. Lat. 59°N-75°N, long. 3°E-64°W. Scale 1″=30 naut. m. (1:2,188,800) at lat. 6 7° 30′, contour interval 2,000, 3,000, 5,000, 7,000, 9,000, and 12,000 ft.