H0827611H08276: NOS Hydrographic Survey , Smith Point to Mob Neck, Potomac River, Maryland-Virginia, 1955-07-18 (ID: boundingGeographicBoundingBox) Coastal, navigationally significant waters of the United States of America, U.S. protectorates, and partner sovereign nations. at E: -76.3038869995804, W: -76.4596620004856, N: 37.8895370003576, S: 37.8241080002713#footprint-76.4596620004856,37.8241080002713 -76.3038869995804,37.8241080002713 -76.3038869995804,37.8895370003576 -76.4596620004856,37.8895370003576 -76.4596620004856,37.8241080002713