Pg. 30-31, pls. 1, 2. Alegria formation. Defined as marine facies of continental Sespe formation in Gaviota and Point Conception quadrangles. Consists of about 1,200 feet of sandstone and minor amount of siltstone lying conformably above Gaviota formation and disconformably below Vaqueros formation. Varies in lithology and thickness along strike. From Agua Caliente Canyon grades laterally eastward into nonmarine Sespe; red clays appear progressively lower until at Capitan Canyon they occur throughout section, which apparently is all nonmarine. Age is Oligocene (Refugian).
Type locality: ridge east of Canada de Santa Anita, Santa Barbara Co., south-central CA. Formation is developed only on south flank of Santa Ynez Range between a point 4 mi north of Point Conception and Capitan Canyon.

Source: US geologic names lexicon (USGS Bull. 1200, p. 47-48).