• American Camp parade ground looking west

    San Juan Island

    National Historical Park Washington

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  • Park on Spring Schedule

    The American Camp visitor center is open 8:30 a.m. to 4:30 p.m.Wednesday-Sunday. The English Camp contact station is closed through May 31. Grounds at both units are open from dawn to 11 p.m. More »

Butterflies

Anise_swallowtail
The Anise Swallowtail is one of 32 species found on San Juan Island.
Wikipedia
 

A 2004 survey reported 32 species of butterflies on San Juan Island. First to arrive are sky blue Spring Azures, then Pale Tiger Swallowtails, Purplish Coppers, Silvery Blues, Brown Elfins, Two-Banded Checkered Skippers, and many more. This is also home to the rare Island Marble butterfly, thought to be extinct but recently discovered on the island in 1998. You may spot one flitting around nonnative mustard plants.

Did You Know?

Winfield Scott

Lt. Gen. Winfield Scott's Mexican War campaign was a set-piece example for cadets in both Europe and North America, but he was most celebrated as a peacemaker. He had resolved two other Anglo_american border disputes before coming to San Juan Island. More...