Teresa Island is a Island located in Cassiar Land District, British Columbia and has an elevation of 732 meters.

• Latitude: 59° 26' North   (decimal: 59.4333000)
• Longitude: 133° 47' West   (decimal: -133.7833000)
• Topography Feature Category: Island
• Geographical Feature: Island
• Canadian Province/Territory: British Columbia
• Elevation: 732 meters
• Location: Cassiar Land District
• Atlas of Canada Locator Map: Teresa Island
• GPS Coordinate Locator Map: Teresa Island Lat/Long