Yolo Hiker - extensive guide to trails of the Inner Coastal Range
Quail Ridge Wilderness Conservancy - guided monthly nature walks at Quail Ridge and ecological boat tours on Lake Berryessa
Napa Land Trust - sponsors group hikes around Lake Berryessa
Blue Ridge Berryessa Natural Area - Conservation of the Inner Coastal Range
Bureau of Reclamation Website for Lake Berryessa
Berryessa Trails and Conservation - A Vision for the Future
Tuleyome - Working to Expand Trails in the Berryessa Region