--- kind: "section" citation: "27 C.F.R. § 9.116" title: "27" number: "9.116" heading: "Sonoma Coast." url: "https://uscodex.org/cfr/27/9.116" --- # §9.116. Sonoma Coast. - (a) **Name.** The name of the viticultural area described in this section is “Sonoma Coast”. - (b) **Approved map.** The approved maps for determining the boundary of the Sonoma Coast viticultural area are the following six U.S.G.S. topographic maps: - (1) **Sonoma County, California, scale 1—** 100,000, dated 1970; - (2) Mark West Springs, California, 7.5-minute series, dated 1958, photoinspected 1978; - (3) Healdsburg, California, 7.5-minute series, dated 1955, photorevised 1980; - (4) Jimtown, California, 7.5-minute series, dated 1955, photorevised 1975; - (5) Guerneville, California, 7.5-minute series, dated 1955; and - (6) Cazadero, California, 7.5-minute series, dated 1978. - (c) **Boundary description.** In general, the boundary description of the Sonoma Coast viticultural area is found on the U.S.G.S. Topographic Map of Sonoma County, California, scale 1:100,000, dated 1970. When a point of the boundary description is found on one of the 7.5-minute quadrangles, the boundary description indicates this in parentheses. The boundary description is as follows: - (1) The beginning point is the point at which the Sonoma County-Mendocino County line meets the shoreline of the Pacific Ocean. - (2) The boundary follows the shoreline of the Pacific Ocean southerly to the Sonoma County-Marin County line. - (3) **The boundary follows the Sonoma County-Marin County line southeasterly to San Pablo Bay.** - (4) **The boundary follows the shoreline of San Pablo Bay easterly to the Sonoma County-Napa County line.** - (5) **The boundary follows the Sonoma County-Napa County line northerly to the peak of Arrowhead Mountain.** - (6) From the peak of Arrowhead Mountain, the boundary proceeds in a straight line westerly to the peak of Sonoma Mountain. - (7) From the peak of Sonoma Mountain, the boundary proceeds in a straight line northwesterly to the peak of Taylor Mountain. - (8) From the peak of Taylor Mountain, the boundary proceeds in a straight line northwesterly to the point, near the benchmark at 184 ft. elevation in [Section 34](/cfr/27/34.md), Township 8 North, Range 8 West, at which Mark West Road crosses an unnamed stream which flows northwesterly into Mark West Creek. (Mark West Springs map) - (9) From this point, the boundary proceeds northerly in a straight line to the headwaters of Brooks Creek, in [Section 4](/cfr/27/4.md), Township 8 North, Range 8 West. (Mark West Springs map) - (10) **The boundary follows Brooks Creek northwesterly to its confluence with the Russian River.** (Healdsburg map) - (11) **The boundary proceeds southwesterly in a straight line to an unidentified peak at elevation 672 ft.** (Healdsburg map) - (12) **The boundary proceeds northwesterly in a straight line to the peak identified as Black Peak.** (Healdsburg map) - (13) **The boundary proceeds westerly in a straight line to an unidentified peak at elevation 857 ft.** (Healdsburg map) - (14) **The boundary proceeds westerly in a straight line to the peak of Fitch Mountain at elevation 991 ft.** (Healdsburg map) - (15) The boundary proceeds northwesterly in a straight line to the intersection, near a benchmark at elevation 154 ft. in the town of Chiquita, of a light-duty road (known locally as Chiquita Road) and a southbound primary highway, hard surface road (known locally as Healdsburg Avenue). (Jimtown map) - (16) The boundary follows that road (known locally as Healdsburg Avenue) southerly through the city of Healdsburg to the point at which it is a light-duty, hard or improved surface road, identified on the map as Redwood Highway, which crosses the Russian River, immediately south of the city of Healdsburg at a bridge (known locally as the Healdsburg Avenue Bridge). (Healdsburg map) - (17) The boundary follows the Russian River southerly to a point, near the confluence with Dry Creek, opposite a straight line extension of a light-duty, hard or improved surface road (known locally as Foreman Lane) located west of the Russian River. (Healdsburg map) - (18) The boundary proceeds in a straight line to that road and follows it westerly, then south, then westerly, onto the Guerneville map, across a secondary highway, hard surface road (known locally as Westside Road), and continues westerly, then northwesterly to the point at which it crosses Felta Creek. (Guerneville map) - (19) **The boundary follows Felta Creek approximately 18,000 ft.** westerly to its headwaters, at the confluence of three springs, located approximately 5,800 feet northwesterly of Wild Hog Hill. (Guerneville map) - (20) The boundary proceeds in a straight line southwesterly to the southwest corner of [Section 9](/cfr/27/9.md), Township 8 North, Range 10 West. (Guerneville map) - (21) The boundary proceeds in a straight line southwesterly to the point in, [Section 24](/cfr/27/24.md), Township 8 North, Range 11 West, at which Hulbert Creek crosses the 160 ft. contour line. (Cazadero map) - (22) **The boundary follows Hulbert Creek southerly to its confluence with the Russian River.** - (23) **The boundary follows the Russian River southwesterly to its confluence with Austin Creek.** - (24) **From this point, the boundary proceeds in a straight line northwesterly to the peak of Pole Mountain.** - (25) From the peak of Pole Mountain, the boundary proceeds in a straight line northwesterly to the peak of Big Oat Mountain. - (26) From the peak of Big Oat Mountain, the boundary proceeds in a straight line northwesterly to the peak of Oak Mountain. - (27) From the peak of Oak Mountain, the boundary proceeds in a straight line northwesterly approximately 14.5 miles to the Sonoma County-Mendocino County line at the northeast corner of [Section 25](/cfr/27/25.md), Township 11 North, Range 14 West. - (28) The boundary follows the Sonoma County-Mendocino County line west, then southwesterly to the beginning point. ## Notes ### Amendments [T.D. ATF-253, 52 FR 22304, June 11, 1987] ### Authority Authority: 27 U.S.C. 205. ### Source Source: T.D. ATF-60, 44 FR 56692, Oct. 2, 1979, unless otherwise noted. ### Amendments [T.D. ATF-253, 52 FR 22304, June 11, 1987]