This was a link posted to the CC list that I thought everyone could find beneficial. It is a huge picture so I won't post it directly. Follow the link instead:

http://www3.shastacollege.edu/dscoll...limate_map.jpg

Also bottom of this page:
http://www3.shastacollege.edu/dscollon/

Right side, you'll find links to some useful resources and maps.