Original sentence: Crater Lake is often cited as the 7th deepest lake in the world, but this ranking excludes Lake Vostok, which is situated under nearly 13,000 feet (4000 m) of Antarctic ice, and the recent soundings of San Martín Lake, which is located on the border of Chile and Argentina.Its deepest point has been measured at 1,949 feet (594 m) deep, though as with any lake its depth fluctuates with the climate, particularly rainfall.The caldera rim of Crater Lake ranges in elevation from 7,000 to 8,000 feet (2,130 to 2,440 m).The lake is 5 by 6 miles (8 by 9.6 km) across with an average depth of 1,148 feet (350 m)
Edited sentence: Crater Lake is often cited as the 7th deepest lake in the world, but this ranking excludes Lake Vostok, which is situated under nearly  of Antarctic ice, and the recent soundings of San Martín Lake, which is located on the border of Chile and Argentina.Its deepest point has been measured at  deep, though as with any lake its depth fluctuates with the climate, particularly rainfall.The caldera rim of Crater Lake ranges in elevation from.The lake is  across with an average depth of