The Gessner Mansion

Historical marker location:

6420 Carleton Ave South, Seattle, Washington

( Marker is on Carleton Avenue South south of South Eddy Street, on the right when traveling north.)

Georgetown Historic Site.

Mount St. Helens, located in southwestern Washington, erupted on May 18, 1980, causing the deadliest and most economically destructive volcanic event in the history of the United States.