Grassy Lake is a Lake located in Rainy River, Ontario and has an elevation of 350 meters.

• Latitude: 48° 39' 58'' North   (decimal: 48.6661111)
• Longitude: 92° 42' 43'' West   (decimal: -92.7119444)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 350 meters
• Location: Rainy River
• Atlas of Canada Locator Map: Grassy Lake
• GPS Coordinate Locator Map: Grassy Lake Lat/Long