Air navigation charts V30 (series). 35. Lat. 14° N-30′ N. long. 51° W-79° W. Scale 1″=30 naut. m. (1:2,188,800) at lat. 22°30′. contour interval 1,000, 2,000, 3,000, 5,000 7,000, and 9,000 ft.