The San Gabriel and Lower Los Angeles Rivers and Mountains Conservancy (RMC) is an agency of the State of California in the United States with the mission of preserving open space and habitat for low-impact recreation and educational uses, wildlife habitat restoration and protection, and watershed improvements within its jurisdiction.

[3] At the time of its founding, it was the state's first conservancy to primarily serve an urban area.

[2] The RMC is a member of 2 joint powers authorities, the Watershed Conservation Authority (RMC and Los Angeles County Flood Control District)[4] and the Los Cerritos Wetlands Authority (RMC, State Coastal Conservancy, City of Long Beach, City of Seal Beach)[5] The agency’s jurisdiction contains 79 cities in Orange and Los Angeles Counties, encompassing all or part of the Angeles National Forest, Santa Catalina Island, the Lower Los Angeles River, Santa Ana River, Santa Clara River, and Dominguez Channel watersheds.

[7] Voting Members: Non-Voting Members: Municipal and county governments, school districts, non-profit organizations, mutual water companies, and tribal organizations are eligible to apply for RMC funding.

Examples include habitat restoration, new parks and open space in park poor communities, creation or expansion of urban tree canopy, green infrastructure and urban greening, and the increase of access points and trails within natural areas.