Marnoch is a Unincorporated area located in Huron, Ontario and has an elevation of 299 meters.

• Latitude: 43° 50' 29'' North   (decimal: 43.8413888)
• Longitude: 81° 25' 38'' West   (decimal: -81.4272222)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Dispersed Rural Community
• Canadian Province/Territory: Ontario
• Elevation: 299 meters
• Location: Huron
• Atlas of Canada Locator Map: Marnoch
• GPS Coordinate Locator Map: Marnoch Lat/Long