Grenville Rock is a Shoal located in Range 5 Coast Land District, British Columbia.

• Latitude: 54° 2' North   (decimal: 54.0332999)
• Longitude: 130° 53' West   (decimal: -130.8832999)
• Topography Feature Category: Shoal
• Geographical Feature: Rock
• Canadian Province/Territory: British Columbia
• Location: Range 5 Coast Land District
• Atlas of Canada Locator Map: Grenville Rock
• GPS Coordinate Locator Map: Grenville Rock Lat/Long