Guida California
http://www.nxtbook.com/nxtbooks/sunset/california-ovg10/

Guida sulle strade della California
http://www.nxtbook.com/nxtbooks/sunset/california_roadtrips2010/

Mappe California
http://www.visitcalifornia.com/Travel-Tools/Downloadable-Maps/

Guida San Francisco
http://www.nxtbook.com/nxtbooks/weaver/sfovg209/

Informazioni su Los Angeles
http://discoverlosangeles.com/planning-your-trip/travel-resources/

San Francisco
www.onlyinsanfrancisco.comwww.onlyinsanfrancisco.it

Yosemite
http://www.homeofyosemite.com/yosemite/107
http://www.nps.gov/yose/planyourvisit/maps.htm

Mammoth
http://www.visitmammoth.com/
http://edition.pagesuite-professional.co.uk/launch.aspx?referral=other&refresh=R1e2z60L71Fa&PBID=362653e1-37ab-458d-9508-fca4c68f0c32&skip= Death Valley
http://www.nps.gov/deva/index.htmhttp://www.nps.gov/deva/planyourvisit/index.htm