East River St. Marys is a River located in Guysborough; Pictou, Nova Scotia and has an elevation of 30 meters.

• Latitude: 45° 15' North   (decimal: 45.2499999)
• Longitude: 62° 4' West   (decimal: -62.0658333)
• Topography Feature Category: River
• Geographical Feature: River
• Canadian Province/Territory: Nova Scotia
• Elevation: 30 meters
• Location: Guysborough; Pictou
• Atlas of Canada Locator Map: East River St. Marys
• GPS Coordinate Locator Map: East River St. Marys Lat/Long