Formed in 2001 in Point Loma, San Diego after a 34-million-gallon sewer spill into the San Diego River, The San Diego River Park Foundation (EIN 01-0565671) operates as a 501(c)(3) land trust now conserving 2,158 acres along the 52-mile river corridor. The foundation's volunteer-driven cleanups remove thousands of pounds of storm-deposited debris from the Midway District San Diego riverbed each year, contributing to the same watershed-protection mission pursued by Rose Creek Watershed Alliance in the northern tributaries. Its "Trout in the Classroom" curriculum partners with the California Department of Fish and Wildlife to guide K-8 students through the full Rainbow Trout lifecycle before student-led releases at Lake Murray. An additional 110 acres held under conservation easement and 120 acres transferred to public agencies expand the kind of urban green-space network also advanced by San Diego Parks Foundation across the region. Current construction of the River Center at Grant Park will deliver a 17-acre education campus with interpretive trails, native-plant restoration plots, and hands-on riparian ecology labs spanning the full corridor from mountains to ocean.