A number of active fault underlie Lake Clark National Park and Preserve's rugged terrain. The longest, at 225 km, is the Lake Clark Fault which lies between the Alaska Range and the Chigmit Mountains, under the lake itself and Lake Clark Pass. To the east are the Telaquana and Mulchatna faults.
Did You Know?
Salmon migrate to the Lake Clark area from as far away as the western end of the Aleutian chain. During their homeward journey, they average 35 miles per day.