Paron lake formed as a natural reservoir has an area of 443km2 it is 37km long from east to west and average of 7000m width from north to south the original depth was about 75m but today the level was lowered 15m to prevent the collapse of the moraine the water from the lake was formerly used for the canon del pato hydroelectric scheme since 29 july 2008 this condition has ceased the lake itself is within the borders of the huascaran national park the water level is controlled by a tun