Key Monastery is a famous tibetan buddhist monastery located at the altitude of 4166 mtr in spiti valley Monks are friendly and helpful in nature. Key monestry celebrate annual festival in june or  july. this celebration involves CHAM dancer and dance in ritual ground located below the monestry, Key monestry was found in 11th centuary, it has been attack & damage by Mangols. Key monestary is the largest is largest monestry in spiti and holds great spirituals significance.