Grass Mountain is a Mountain located in Cassiar Land District, British Columbia.

• Latitude: 57° 55' 21'' North   (decimal: 57.9224999)
• Longitude: 131° 27' 23'' West   (decimal: -131.4563888)
• Topography Feature Category: Mountain
• Geographical Feature: Mountain
• Canadian Province/Territory: British Columbia
• Location: Cassiar Land District
• Atlas of Canada Locator Map: Grass Mountain
• GPS Coordinate Locator Map: Grass Mountain Lat/Long