H0827911H08279: NOS Hydrographic Survey , Smith Point to Mob Neck, Potomac River, Maryland-Virginia, 1959-10-21 (ID: boundingGeographicBoundingBox) Coastal, navigationally significant waters of the United States of America, U.S. protectorates, and partner sovereign nations. at E: -76.2772420003294, W: -76.3705770003455, N: 38.1475309997113, S: 38.0254339999449#footprint-76.3705770003455,38.0254339999449 -76.2772420003294,38.0254339999449 -76.2772420003294,38.1475309997113 -76.3705770003455,38.1475309997113 -76.3705770003455,38.0254339999449