Comparative physiographic diagrams of Mount St. Helens, Washington, and Crater Lake, Oregon
Miscellaneous Field Studies Map
1403
By: Tau Rho Alpha and Jim M. Morley
Links
- Plate: Plate 1 (pdf)
- Download citation as: RIS | Dublin Core
Abstract
These physiographic diagrams provide a visual comparison of two Cascade Range volcanoes which have had their tops destroyed in different ways -- Mount St. Helens in 1980, Mount Mazama (whose site is now occupied by Crater Lake) about 6,800 years ago. Both volcanoes are viewed from the north from 30 degrees above the horizon, with no vertical exaggeration. The ground area portrayed in each diagram is equal; the south edge of the Mount St. Helens drawing is lower than that of Crater Lake drawing because elevations drop away toward the south, whereas elevations are more constant at the north and south edges of the Crater Lake diagram.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Comparative physiographic diagrams of Mount St. Helens, Washington, and Crater Lake, Oregon |
| Series title | Miscellaneous Field Studies Map |
| Series number | 1403 |
| DOI | 10.3133/mf1403 |
| Year Published | 1983 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Description | 35.70 x 29.57 inches |
| Country | United States |
| State | Oregon, Washington |
| Other Geospatial | Crater Lake, Mount St. Helens |
| Scale | 62500 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |