Upper Basin A is a Lake located in Rainy River, Ontario and has an elevation of 412 meters.

• Latitude: 48° 49' 47'' North   (decimal: 48.8297222)
• Longitude: 91° 34' 55'' West   (decimal: -91.5819444)
• Topography Feature Category: Lake
• Geographical Feature: Basin
• Canadian Province/Territory: Ontario
• Elevation: 412 meters
• Location: Rainy River
• Atlas of Canada Locator Map: Upper Basin A
• GPS Coordinate Locator Map: Upper Basin A Lat/Long