Larcom Lagoon is a Lake located in Cassiar Land District, British Columbia and has an elevation of 21 meters.

• Latitude: 55° 24' North   (decimal: 55.3999999)
• Longitude: 129° 44' West   (decimal: -129.7333000)
• Topography Feature Category: Lake
• Geographical Feature: Lagoon
• Canadian Province/Territory: British Columbia
• Elevation: 21 meters
• Location: Cassiar Land District
• Atlas of Canada Locator Map: Larcom Lagoon
• GPS Coordinate Locator Map: Larcom Lagoon Lat/Long