Leonard Kniaseff
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Leonard Kniaseff is a stratovolcano in the Philippine province of Compostela Valley on the island of Mindanao. The last eruption of the volcano was about 1,900 years ago. In the West, his 4 x 5 km caldera is Lake Leonard, a lake with an area of 8 hectares and a height of 800 meters above the sea level. Lakeside are located in several places fumaroles and hot springs solfataras.