What do you know about Iliamna Lake seals?

From ice to isotopes, our new fact sheet provides an overview of a rare population of harbor seals that make their home year-round on Alaska’s largest lake.

Iliamna Lake Harbor Seal Fact Sheet

Quick read

• There are about 400 Iliamna Lake seals.

• They are the only freshwater harbor seal population in the United States.

• Scientists believe the seals stay in Iliamna Lake for their entire lifecycle.

• Some proposed components of the Pebble mine include a ferry transport across Iliamna Lake.

• There is concern for the welfare of the seals if their habitat is used as a transportation corridor.