California Code, Public Resources Code - PRC § 32631

(a) The San Diego River is a natural, historic, and recreational resource in the heart of San Diego.  From its headwaters near the town of Julian in east San Diego County, it runs 52 miles through Mission Valley and the first settlement in California at Old Town San Diego before it empties into the Pacific Ocean at Ocean Beach.  The river has been subjected to intense development in some parts;  it runs through one of San Diego's most populated neighborhoods and is in need of restoration, conservation, and enhancement all along its length.  The area presents excellent opportunities for recreation, scientific research, historic preservation of the first aqueduct in the United States, and educational and cultural activities, of value to California and the nation.  Reestablishing the cultural and historic connections between the San Diego River, Old Town San Diego State Historic Park, the Military Presidio, and the Kumeyaay Nation will provide the public with the opportunity to appreciate the state's historic beginnings.

(b) Given the opportunities available, the state recognizes the importance of holding this land in trust to be preserved and enhanced for the enjoyment of present and future generations.