Grassy River is a River located in Ontario.

• Latitude: 49° 5' North   (decimal: 49.0832999)
• Longitude: 94° 20' West   (decimal: -94.3332999)
• Topography Feature Category: River
• Geographical Feature: River
• Canadian Province/Territory: Ontario
• GPS Coordinate Locator Map: Grassy River Lat/Long