where is twitchell reservoir
Twitchell Reservoir Vacation and Resort Properties. Twitchell Reservoir in southern San Luis Obispo County, California provides flood control and is used to replenish ground water. Water levels are often low. The dam and reservoir are not open to the public.achuma Reservoir, formed by Bradbury Dam, offers a prime recreational opportunity for the south central coast area of California. The Cachuma Project is located in the Santa Ynez Valley, the area provides an aesthetic view of the Santa Ynez mountains. The recreation area is adjacent to the Los Padres National Forest.