1. Home
  2. Education
  3. Geology
Western Transverse Ranges
Photos and notes by your About Geology Guide
[1] [2] [3] [4] [5] [6] [7]


Sierra Madre range across the Cuyama River. View west.

The sunlit spur extending into the river valley shows the warm reddish colors that are common in continental sedimentary rocks. Iron oxide minerals are responsible. It also shows how important the orientation of slopes is for the trees in this dry climate. The south-facing slopes are bare while the north-facing slopes retain enough moisture to support a low forest. The valley floor supports ranches, farms and orchards; in the ranges farther west have appeared new vineyards.

The mountains in the back are part of the Sierra Madre, one of many smaller ranges that make up the Transverse Ranges. The road skirts its eastern end, where it meets long, rugged Pine Mountain and the Topatopa Mountains extending farther east.

Start    Next >

All photos (c) 2003 Andrew Alden, licensed to About.com, Inc.

About.com Special Features

A Smarter Future

Tips that will help finance your education, excel in the classroom, and advance your career. More >

How to Ace the GRE

Being well prepared is the first step; here are more essential suggestions. More >