Coldwater observation post, later called "Coldwater I." 13.5 km (8....

Detailed Description
Coldwater observation post, later called "Coldwater I." 13.5 km (8.4 mi) northwest of Mount St. Helens.
Coldwater observation post, later called "Coldwater I." 13.5 km (8.4 mi) northwest of Mount St. Helens.