The anniversary of the 1980 eruption of Mount St. Helens is still a memorable date for many Washingtonians. It also helped propel the documents related to that iconic volcanic event to an easy win in the May Archives Treasures online poll.

The St. Helens eruption docs, which include a letter from President Jimmy Carter to Gov. Dixy Lee Ray, gathered 49 percent of the votes. The 1975 Vietnamese refugee photos and documents finished second with 33 percent, followed by Seattle pioneer David Denny’s powder horn (18 percent).

We’ll start this month’s Library Jewels series soon, so be ready!