Popularly known as Tachog Lhakhang or ‘temple of the hill of the excellent horse’, the Tamchoe Monastery stands on a mountain base at an altitude of 2156m along the highway connecting Paro and Thimphu. Overlooking the Paro Chhu, this Dzong is located between Chhuzom and Isuna village and dates back to 1420 when architect saint Thangtong Gyalpo built it after having a vision of Avalokiteshvara in the guise of Balaha-an (spiritual horse) during meditating.