Four Rivers Association

Four Rivers AssociationThe Four Rivers Association funds and supports educational and resource projects and programs in state parks near Los Banos including San Luis Reservoir State Recreation Area, Pacheco State Park, George J. Hatfield State Park, McConnell State Recreation Area, Turlock Lake State Recreation Area, Great Valley Grasslands State Park and Caswell Memorial State Park.

The Association publishes and sells books, pamphlets, maps and other aids that represent parks and their resources. They also provide funding for special events, guided tours, and other programs. The association also furnishes equipment and supplies to help park staff and volunteers tell the parks’ story to visitors; and provides research funds. Four Rivers Association is currently building a reference library.

Members receive quarterly newsletters with a schedule of events and activities in the various parks and adjacent refuges. Members also receive a 10% discount on maps, postcards and seed packets sold at Romero Visitor Center. Membership levels are $10 for individuals and $15 for family. New memberships are FREE for the first year. The Four Rivers Association has proven itself to be a valuable ally to the visitors and staff at state parks in the San Joaquin Valley. To become a member fill out the membership application form and mail it to the address listed.



Four Rivers Association
31426 Gonzaga Road Gustine, CA 95322-9737
TEL (209) 826-1197

California State Parks has a valuable relationship with more than 80 cooperating associations authorized pursuant to Public Resources Code 513. These non-profit charitable organizations are dedicated to enhancing the educational and interpretive programs in California State Parks. Associations are related to, but independent of the state parks they serve.

Many associations have websites. California State Parks encourages you to visit these websites, however does not guarantee the content, timeliness or accuracy of the materials on these sites.