The Land Trust of Napa County is an agency whose mission is to protect the rural nature of Napa County. Its conservation efforts go to preserving agriculture, scenic open space and biodiversity. It was established by local residents who saw the necessity of preserving the hills and valleys and extraordinary scenic views of Napa. It oversees maintainance for permanent preserves, properties protected by agency transfers and properties protected by conservation agreements. Some of the properties protected by conservation agreements include, Alston Park, Carneros Creek, the Coppola Estate, Dunn Sentinel Hill, Green Valley Ranch and Newell Open Space. It is located in suite 20 and is member of Land Trust Alliance.