H1021811H10218: NOS Hydrographic Survey , St. Marys River, Michigan, 1986-09-12 (ID: boundingGeographicBoundingBox) Coastal, navigationally significant waters of the United States of America, U.S. protectorates, and partner sovereign nations. at E: -84.241234000141, W: -84.307081999741, N: 46.484880999558, S: 46.4360040001851#footprint-84.307081999741,46.4360040001851 -84.241234000141,46.4360040001851 -84.241234000141,46.484880999558 -84.307081999741,46.484880999558 -84.307081999741,46.4360040001851