Thoms Mud Lake is a Lake located in Lanark, Ontario and has an elevation of 140 meters.

• Latitude: 44° 51' 53'' North   (decimal: 44.8647222)
• Longitude: 76° 13' 48'' West   (decimal: -76.2299999)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 140 meters
• Location: Lanark
• Atlas of Canada Locator Map: Thoms Mud Lake
• GPS Coordinate Locator Map: Thoms Mud Lake Lat/Long