Its surface is approximately 24.5 km2 and its maximum depth of 191 metres makes it the deepest and by volume largest lake located entirely within Austrian territory; only Lake Constance on the border is deeper and bigger.
Its surface area is approximately 24.5 square kilometers, and its maximum depth of 191 meters makes it the deepest and by volume largest lake situated entirely within Austrian territory; only Lake Constance on the border is deeper and larger.