Located in one of the most beautiful areas of Southeast Arizona,
Sonoita Creek is a gift to the animals and plants that inhabit the area, and the people who live and visit there.

Research, Restore, Educate & Collaborate

Founded in 2004, Friends of Sonoita Creek (FOSC) works to protect and restore the water and natural habitat of Sonoita Creek and its watershed. We inform residents and visitors about the importance of Sonoita Creek to life forms and its relationship to the geography through hands-on activities, presentations, hikes, and financial support to kindred organizations.

Sonoita Creek flows a distance of 30 miles, above and below ground, southwest from Sonoita into the Santa Cruz River north of Nogales. The watershed drains 258 square miles, has unique geological features, seven biomes with a great diversity of plant and animal species, and vast natural beauty.

It is a cultural crossroads with protected ancient archaeology sites, a Spanish colonial past, and mining, ranching and railroad history.



FOSC is a non-profit organization and your donations are tax deductible.


Annual Meeting -- Watershed Restoration Ecology

Sat., April 8 -- THANK YOU to The Nature Conservancy's Aaron Mrotek and Tucson Audubon Society's Howard Buchanan, Cally Wilken and others for great presentations on the watershed restoration work being performed around Patagonia.  The work benefits all of Patagonia. 

Volunteer Opportunities -- Join Us

Water Quality Sampling
Wednesday, Apr. 26 -- 8:00 a.m. Meet at Paton Center, 477 Pennsylvania Avenue, Patagonia

Thursday, April 27 -- at approximately 11:00 a.m.  Meet at Paton Center, 477 Pennsylvania Avenue, Patagonia
Water quality sampling gives insights into natural impacts and impacts to the environment caused by human activity of upstream land and water uses, documenting potential changes over time.

Wet/Dry Mapping
Sat, Jun. TBD   Harshaw Creek -- 8:00 a.m. - 2:00 p.m.  Meet at Patagonia Post Office, 100 N Taylor Lane.
Sun, Jun. TBD  Sonoita Creek -- 8:00 a.m. - 2:00 p.m. Meet at Paton Center, 477 Pennsylvania Av, Patagonia
Wet-Dry mapping seeks to precisely locate where above ground water is flowing in order to better understand future impacts on the creek over time.

To participate or for more information about these opportunities and others, contact us at sonoitacreek@gmail.com