Wikipedia
Hasensee
Hasensee is a lake in the canton of Thurgau, Switzerland. It is located in the same valley as Nussbaumersee and Hüttwilersee. Its surface area is 0.11 km² and the surface elevation is 434.16 m , after being lowered by 1.5 m in World War II.
Hasensee is or was also known as Buchemer See or oberer See (upper lake).