Greywacke Mountain is a Mountain located in Timiskaming, Ontario and has an elevation of 329 meters.

• Latitude: 47° 20' 39'' North   (decimal: 47.3441666)
• Longitude: 79° 40' 49'' West   (decimal: -79.6802777)
• Topography Feature Category: Mountain
• Geographical Feature: Mountain
• Canadian Province/Territory: Ontario
• Elevation: 329 meters
• Location: Timiskaming
• Atlas of Canada Locator Map: Greywacke Mountain
• GPS Coordinate Locator Map: Greywacke Mountain Lat/Long