Iliamna Lake
from the northern shore
Location	Lake and Peninsula Borough, Alaska
Coordinates	59°32′12″N 155°01′28″W / 59.53667°N 155.02444°W / 59.53667; -155.02444[1]
Lake type	oligotrophic
Primary outflows	Kvichak River
Basin countries	United States
Max. length	77 mi (124 km)[2]
Max. width	22 mi (35 km)[2]
Surface area	1,012.5 sq mi (2,622 km2)[2]
Average depth	144 ft (44 m)[2]
Max. depth	988 ft (301 m)[2]
Water volume	27.7 cu mi (115 km3)[2]
Residence time	7.8 years[2]
Surface elevation	46 ft (14 m)[1]
Settlements	Iliamna, Newhalen, Kokhanok, Pedro Bay, Igiugig
References	[1][2]

Iliamna Lake (or Lake Iliamna) is a lake in southwest Alaska. It is at the north end of the Alaska Peninsula. It is about 100 miles (160 kilometers) west of Seldovia, Alaska.^[1]

Lake Iliamna is the largest lake in Alaska. It is the eighth largest lake in the United States. It covers about 1,000 square miles (2,600 square kilometers). The lake is 77 miles (124 kilometers) long and up to 22 miles (35 kilometers) wide. Its deepest point is 988 feet (301 meters) deep. The lake drains through the Kvichak River into Bristol Bay.^[3]

• Detailed topographic map at the University of Texas website