Girdwood, AK

ZIP code 99587 belongs to the remote town of Gakona, Alaska. This area is most well-known for being home to the HAARP (High-Frequency Active Auroral Research Program) facility, which studies the Earth's ionosphere. Additionally, the Gakona River and Wrangell-St. Elias National Park are prominent natural landmarks in the region, offering stunning views and outdoor recreational opportunities for visitors and residents alike.