Link to USGS home page
A Tapestry of Time and Terrain:
The Union of Two Maps - Geology and Topography
Tapestry Main Page
top bar

The Cascades

Select a new feature About the Upper Tertiary About the Quaternary Period
Cascade Mountains
Index map
Index map

The great length and strong north-south linearity of the Cascade Range, a narrow yellow band extending from southern Washington to northern California, contrasts sharply with the varied directional trends of other mountain groups to the east and northeast. The Cascades arose through the plate collisions that have enlarged the western continent in Tertiary-to-Holocene time. This mountain range contains such large and geologically recent active volcanoes as Rainier, Hood, and Shasta.

bottom bar

U.S. Department of the Interior
U.S. Geological Survey
Contact: Administrator
Last Modification: 18 Oct 2000 (ebj)
USGS Privacy Policy