East River St. Marys is a Unincorporated area located in Pictou, Nova Scotia and has an elevation of 72 meters.

• Latitude: 45° 23' 29'' North   (decimal: 45.3913888)
• Longitude: 62° 9' 57'' West   (decimal: -62.1658333)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Community
• Canadian Province/Territory: Nova Scotia
• Elevation: 72 meters
• Location: Pictou
• Atlas of Canada Locator Map: East River St. Marys
• GPS Coordinate Locator Map: East River St. Marys Lat/Long