Three Fathom Patches is a Shoal located in Nanaimo Land District, British Columbia and has an elevation of 1 meters.

• Latitude: 49° 10' 20'' North   (decimal: 49.172222)
• Longitude: 123° 55' 40'' West   (decimal: -123.92778)
• Topography Feature Category: Shoal
• Geographical Feature: Patch
• Canadian Province/Territory: British Columbia
• Elevation: 1 meters
• Location: Nanaimo Land District
• Atlas of Canada Locator Map: Three Fathom Patches
• GPS Coordinate Locator Map: Three Fathom Patches Lat/Long