Lac Otan is a Lake located in Lac-Blanc; Portneuf, Quebec and has an elevation of 669 meters.

• Latitude: 47° 19' 53'' North   (decimal: 47.3314156)
• Longitude: 71° 54' 33'' West   (decimal: -71.9092547)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 669 meters
• Location: Lac-Blanc; Portneuf
• Atlas of Canada Locator Map: Lac Otan
• GPS Coordinate Locator Map: Lac Otan Lat/Long