Lac Piashti is a Lake located in Lac-Jérôme; Minganie, Quebec and has an elevation of 87 meters.

• Latitude: 50° 30' 48'' North   (decimal: 50.5134036)
• Longitude: 62° 52' 32'' West   (decimal: -62.8756730)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 87 meters
• Location: Lac-Jérôme; Minganie
• Atlas of Canada Locator Map: Lac Piashti
• GPS Coordinate Locator Map: Lac Piashti Lat/Long