Grassmere is a Unincorporated area located in Muskoka, Ontario and has an elevation of 317 meters.

• Latitude: 45° 21' 53'' North   (decimal: 45.3647222)
• Longitude: 79° 6' 47'' West   (decimal: -79.1130555)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Dispersed Rural Community
• Canadian Province/Territory: Ontario
• Elevation: 317 meters
• Location: Muskoka
• Atlas of Canada Locator Map: Grassmere
• GPS Coordinate Locator Map: Grassmere Lat/Long