Big Sister Lake is a Lake located in York, New Brunswick and has an elevation of 436 meters.

• Latitude: 46° 41' 58'' North   (decimal: 46.6993363)
• Longitude: 66° 44' 32'' West   (decimal: -66.7422063)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: New Brunswick
• Elevation: 436 meters
• Location: York
• Atlas of Canada Locator Map: Big Sister Lake
• GPS Coordinate Locator Map: Big Sister Lake Lat/Long