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We at Cal-Earth are happy to hear from our website visitors, alumni and friends. Please contact us by email using the form below.

NOTE: Due to the high volume of phone calls and emails we receive, response time will vary.

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Please check the FAQ page to see our most commonly asked questions and their answers.

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Mailing Address only:
Cal-Earth Inc./ Geltaftan Foundation
P.O. Box 1977
Claremont, CA 91711-8977

Address of Cal-Earth Institute Site:
Cal-Earth Inc./ Geltaftan Foundation
10177 Baldy Lane
Hesperia, California 92345
U.S.A.

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.

CONTACTING CAL-EARTH BY EMAIL IS THE FASTEST WAY TO RECEIVE A RESPONSE.
tel: 760-956-7533
fax: 760-244-2201

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Cal-Earth Inc. / Geltaftan Foundation | Hesperia, California

Superadobe technology was designed and developed by architect Nader Khalili and Cal-Earth Institute, and engineered by P.J. Vittore. Superadobe is a patented system (U.S. patent #5,934,027) freely put at the service of humanity and the environment. Licensing is required for commercial use.

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