San Juan Island is well known for splendid vistas, saltwater shore, quiet woodlands, orca whales and one of the last remaining native prairies in the Puget Sound/Northern Straits region. But it was also here in 1859 that the United States and Great Britain nearly went to war over possession of the island, the crisis ignited by the death of a pig. Read More
Peace Over War
Island Marble Butterfly
Most of the world population of the Island Marble Butterfly is in the park, and is currently protected. Learn more about this rare species.
Help celebrate the 100 year anniversary of the National Park Service at a variety of park events.
Prairie Restoration in Action
American Camp is home to one of the most rare ecosystems in the country, the prairie. Learn more about prairies and how you can get involved