Become a Member today!

There are two types of membership:

Supporting Membership – FREE!

Amaterra believes that it is important to provide free memberships.  Activating your membership immediately helps us in two ways.  It encourages us by knowing that people support our work. All members, of whatever category, will receive a periodic email for updates of information about current activities.

Endowment Membership – Make a contribution

Endowment members are those who contribute any amount. Ninety-five percent of all contributions are applied to our small grassroots projects.  A very small portion of contributions pays for expenses such as web site costs, paper, stamps, etc. Amaterra has no paid staff and operates solely with volunteers.

To activate your membership in Amaterra please send us an email with your name and mailing address as your message to:

     Amaterraoutreach (at)

(To contact us for any reason please use the above address.)

Amaterra is organized exclusively for research and education regarding the preservation and improvement of the natural resources of the earth for the benefit of present and future generations.  We do not have any paid staff. We encourage you to thoroughly check us out before contributing.

Our organization is a tax-exempt Public Charity founded in 1980 and approved for federal tax purposes, under sections 501(c)(3) and 509(a)(1) of the Internal Revenue Code, since April 1982.  Also an IRS record search may quickly be made HERE. You are also invited to view our complete incorporation papers and Bylaws. And finally, our corporation filings with the State of Arizona are HERE under the file number of 01345981-1.


We absolutely do not sell, or share, membership information with other persons or organizations.