On a late night in October 1993, the Friends of Agua Caliente, Inc. (FOAC) was formed in an effort to save a historic site in the Tanque Verde Valley. The organization was successful in saving three of the park’s original five buildings. The Friends of Agua Caliente, Inc., is a 501 (c) (3) non-profit corporation. Donations to FOAC are tax deductible to the fullest extend allowed by law. The following link provides the non-profit letter regarding our 501 (c) (3) status FOAC_501c3_IRS_letter