Leave a Lasting Conservation Legacy


A Call for Greater Participation

There are many examples that show it is possible to protect critical habitat, promote traditional land uses that operate under best management practices for the conservation of natural resources, and maintain a local economy that is nurtured and strengthened by the pastoral and scenic values that draw so many people to the West. It takes strong conservation measures, sustainable land management practices, and committed organization to resist suburban sprawl and development pressure in the arid Southwest, particularly in a riparian ecosystem.

The Lower San Pedro Watershed Alliance was formed to promote collaborative conservation among groups, agencies, and individuals who care about protecting this important natural desert river ecosystem the watershed that supports it. If you are concerned about the rapid loss of riparian habitat in our state and agree with the purpose of the Alliance, as described above, please join with us.


Membership does not require you to dedicate many hours of your time or make large financial contributions. Membership is an opportunity to join with others to leave a lasting conservation legacy in a state that is undergoing unusually rapid development.

To join, simply let us know of your interest, and we will keep you informed of opportunities to get involved and help protect this landscape.

If you are interested in participating, please respond with an email to LowerSanPedro@gmail.com or by mail to LSPWA, PO Box 544, Mammoth AZ 85618.


Your support is vital to the long term health of the Lower San Pedro region. Your donation of any amount is appreciated, and will be used to help protect this threatened riparian ecosystem and its supporting watershed. We send receipts for your tax-deductible donation to every donor who provides us with an email or snail mail address. We do not distribute your contact information and do not use your email address to send updates unless you want us to.

Donate online

To make your gift online, please visit our PayPal page.

Donate by mail

To make your gift by mail, please send your check or money order to:

Lower San Pedro Watershed Alliance
PO Box 544
Mammoth AZ 85618

Specify if you want your check to go toward our legal effort to keep the proposed SunZia infrastructure corridor out of the lower San Pedro Valley!

Thank you for your support!

All donations and expenses are recorded by our treasurer and reported at our general meetings. For more information on our current expenses, please write to the chair or secretary at the address above or at LowerSanPedro@gmail.com

Tax information:

The Lower San Pedro Watershed Alliance (LSPWA) was granted Federal tax exempt status with the Internal Revenue Service (IRS), under section 501 (c) (3) of the IRS code.

Contributions to the LSPWA, a public charity, are deductible under section 170 of the IRS code.

This status was granted by the IRS on October 9, 2014, and retroactively applies to all donations made to the LSPWA since its incorporation on June 21, 2013.