Tour Information

We offer private and group tours upon request. For more information click on the tours request button below



For the fastest response, contact us through the form below:

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Consider visiting our Frequently Asked Questions page to see if your question has already been answered--we constantly update that page with new questions and answers. See link under "About Us" tab.
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Address of Cal-Earth Institute Site:
10177 Baldy Lane
Hesperia, California 92345

Mailing Address only:
P.O. Box 2575
Mission Viejo, CA 92690

Phone Numbers
The Cal-Earth staff spends most of the day outside on the site working on projects--thus the phone is not often answered. However, the messages are checked daily and the phone calls returned within a few days. Please be sure to leave a clear message and phone number and your call will be returned as soon as possible. If you live outside the United States, please leave an email or Skype name if possible.

tel: 760-956-7533
fax: 760-244-2201