Lake San Cristobal is the second largest natural lake in the U.S. state of Colorado. Located in the San Juan Mountains at an elevation of 9,003 feet (2,744 m), the freshwater lake is 2.1 miles (3.4 km) long, up to 89 feet (27 m) deep, has a surface area of 0.52 square miles (1.3 km²), and holds about 11,000 acre feet (14,000,000 m³) of water. The town of Lake City, a few miles to the north, is named after Lake San Cristobal.