Cerantes (Observatory) Rock is a Shoal located in Renfrew Land District, British Columbia.

• Latitude: 48° 32' North   (decimal: 48.5333000)
• Longitude: 124° 28' West   (decimal: -124.4666999)
• Topography Feature Category: Shoal
• Geographical Feature: Rock
• Canadian Province/Territory: British Columbia
• Location: Renfrew Land District
• GPS Coordinate Locator Map: Cerantes (Observatory) Rock Lat/Long