HYPACK ASCII navigation files collected by the U.S. Geological Survey in the Madison Swanson and Steamboat Lumps Marine Protected Areas, Gulf of Mexico in 2000 (Geographic, WGS 84)

The U.S. Geological Survey (USGS) mapped approximately 22 square miles of the Madison Swanson Marine Protected Area (MPA) and Steamboat Lumps MPA, which are located...美国地质调查局（U.S. Geological Survey, USGS）已对位于……的麦迪逊·斯旺森海洋保护区（Madison Swanson Marine Protected Area, MPA）与斯廷博特朗普斯海洋保护区（Steamboat Lumps MPA）约22平方英里的区域完成测绘。