Delta Meadows River Park (DMRP) is a state park property of California, USA, preserving an undeveloped piece of the Sacramento–San Joaquin River Delta. At present it is officially closed to the public and has no visitor services. The park encompasses sloughs, wet meadows, and an island between the Sacramento and Mokelumne Rivers. It is located near the historic Chinese American town of Locke, 28 miles (45 km) equidistant from Sacramento and Stockton. The 472-acre (191 ha) property was established in 1985.