Spring Lake Regional Park is a 320-acre (130 ha) public park in southeastern Santa Rosa, Sonoma County, California, United States. Centered on the Santa Rosa Creek Reservoir, the park is administered by the Sonoma County Regional Parks Department. Its coordinates are 38°27′N 122°39′W / 38.45°N 122.65°W[1], and its official address is 391 Violetti Drive.