American Farmland Trust California Dept of Conservation California Dept of Conservation, Division of Land Resource Protection CERES Great Valley Center Great Valley Center publications, including "Linked to the Land" and "Agricultural Land Conservation in the Great Central Valley" Land Trust Alliance Library of Congress National Digital Library Program Nature Conservancy National Geographic Maps Shasta Land Trust and Wildways 2006 Parties Sierra Nevada Alliance Sierra Nevada Ecosystem Project TopoZone Trust for Public Land
