Ruisseau Sepier is a River located in Baie-Obaoca; Matawinie, Quebec.

• Latitude: 47° 16' 37'' North   (decimal: 47.2769444)
• Longitude: 74° 6' 9'' West   (decimal: -74.1025)
• Topography Feature Category: River
• Geographical Feature: Ruisseau
• Canadian Province/Territory: Quebec
• Location: Baie-Obaoca; Matawinie
• Atlas of Canada Locator Map: Ruisseau Sepier
• GPS Coordinate Locator Map: Ruisseau Sepier Lat/Long