Maps showing O'Brien Rocks, Grey, Ontario
O'Brien Rocks is a Shoal located in Grey, Ontario.
- Latitude: 44° 32' 22'' North (decimal: 44.5394444)
- Longitude: 80° 18' 12'' West (decimal: -80.3033333)
- Topography Feature Category: Shoal
- Geographical Feature: Rocks
- Canadian Province/Territory: Ontario
- Location: Grey
- Atlas of Canada Locator Map: O'Brien Rocks
- GPS Coordinate Locator Map: O'Brien Rocks Lat/Long
O'Brien Rocks NTS Map Sheets
041A09 Nottawasaga Bay Topographic Map at 1:50,000 scale
041A Owen Sound Topographic Map at 1:250,000 scale
041A Owen Sound Topographic Map at 1:250,000 scale