# 9.28 Santa Maria Valley.
(a) *Name.* The name of the viticultural area described in this section is “Santa Maria Valley”. For purposes of part 4 of this chapter, “Santa Maria Valley” is a term of viticultural significance.
(b) *Approved maps.* The six United States Geological Survey maps used to determine the boundary of the Santa Maria Valley viticultural area are titled:
(1) Orcutt Quadrangle, California-Santa Barbara Co., 7.5 minute series, 1959, photorevised 1967 and 1974, photoinspected 1978;
(2) Santa Maria Quadrangle, California, 7.5 minute series, 1959, photorevised 1982;
(3) “San Luis Obispo”, N.I. 10-3, series V 502, scale 1: 250,000;
(4) “Santa Maria”, N.I. 10-6, 9, series V 502, scale 1: 250,000;
(5) Foxen Canyon Quadrangle, California-Santa Barbara Co., 7.5-minute series, 1995; and
(6) Sisquoc Quadrangle, California-Santa Barbara Co., 7.5 minute series, 1959, photoinspected 1974.
(c) *Boundary.* The Santa Maria Valley viticultural area is located in Santa Barbara and San Luis Obispo Counties, California. The boundary of the Santa Maria Valley viticultural area is as follows:
(1) Begin on the Orcutt quadrangle map at the intersection of U.S. Route 101 and Clark Avenue, section 18 north boundary line, T9N/R33W, then proceed generally north along U.S. Route 101 approximately 10 miles onto the Santa Maria quadrangle map to U.S. Route 101's intersection with State Route 166 (east), T10N/R34W; then
(2) Proceed generally northeast along State Route 166 (east) onto the San Luis Obispo N.I. 10-3 map to State Route 166's intersection with the section line southwest of Chimney Canyon, T11N/R32W; then
(3) Proceed south in a straight line onto the Santa Maria N.I. 10-6 map to the 3,016-foot summit of Los Coches Mountain; then
(4) Proceed southeast in a straight line onto the Foxen Canyon quadrangle map to the 2,822-foot summit of Bone Mountain, T9N/R32W; then
(5) Proceed south-southwest in a straight line approximately 6 miles to the line's intersection with secondary highways Foxen Canyon Road and Alisos Canyon Road and a marked 1,116-foot elevation point, T8N/R32W; then
(6) Proceed west-northwest in a straight line approximately 6 miles onto the Sisquoc quadrangle map to the southeast corner of section 4, T8N/R32W; then
(7) Proceed west-northwest in a straight line approximately 6.2 miles, crossing over the Solomon Hills, to the line's intersection with U.S. Route 101 and a private, unnamed light-duty road that meanders east into the Cat Canyon Oil Field, T9N/R33W; then
(8) Proceed north 3.75 miles along U.S. Route 101 onto the Orcutt quadrangle map and return to the point of beginning.
[T.D. ATF-89, 46 FR 39812, Aug. 5, 1981, as amended by T.D. TTB-88, 75 FR 81849, Dec. 29, 2010]