Number One Lake is a Lake located in Nipissing, Ontario and has an elevation of 230 meters.

• Latitude: 45° 51' 39'' North   (decimal: 45.8608333)
• Longitude: 77° 33' 38'' West   (decimal: -77.5605555)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 230 meters
• Location: Nipissing
• Atlas of Canada Locator Map: Number One Lake
• GPS Coordinate Locator Map: Number One Lake Lat/Long