Porphyry Lake is a Lake located in Cochrane, Ontario and has an elevation of 300 meters.

• Latitude: 49° 28' 27'' North   (decimal: 49.4741666)
• Longitude: 80° 2' 2'' West   (decimal: -80.0338888)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 300 meters
• Location: Cochrane
• Atlas of Canada Locator Map: Porphyry Lake
• GPS Coordinate Locator Map: Porphyry Lake Lat/Long