Physiographic Diagrams of Mount St. Helens, Washington, Showing Changes in its Summit Crater, Summer 1980.

Physiographic Diagrams of Mount St. Helens, Washington, Showing Changes in its Summit Crater, Summer 1980.

Jones, David R.

1981

1988

U.S. Geological Survey

• 发现
• 比较
• 3D
• 文件