Grassy Lake is a Lake located in Thunder Bay, Ontario and has an elevation of 338 meters.

• Latitude: 48° 48' 41'' North   (decimal: 48.8113888)
• Longitude: 86° 49' 5'' West   (decimal: -86.8180555)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 338 meters
• Location: Thunder Bay
• Atlas of Canada Locator Map: Grassy Lake
• GPS Coordinate Locator Map: Grassy Lake Lat/Long