9.70—Northern Sonoma.
(b) Approved maps.
The approved maps for determining the boundary of the Northern Sonoma viticultural area are the U.S.G.S. Topographical Map of Sonoma County, California, scale 1:100,000, dated 1970, the Asti Quadrangle, California, 7.5 minute series (Topographic) Map, dated 1959, photorevised 1978, and the Jimtown Quadrangle, California-Sonoma County, 7.5 Minute series (Topographic) Map, dated 1955, photorevised 1975.
(c) Boundary.
The Northern Sonoma Viticultural area is located in Sonoma County, California. The boundary description in paragraphs (c)(1) through (c)(28) of this section includes (in parentheses) the local names of roads which are not identified by name on the map.
(1)
On the U.S.G.S. Topographical Map of Sonoma County, California, the beginning point is the point, in the town of Monte Rio, at which a secondary highway (Bohemian Highway) crosses the Russian River.
(2)
The boundary follows this secondary highway (Bohemian Highway) southeasterly across the Russian River, along Dutch Bill Creek, through the towns of Camp Meeker, Occidental, and Freestone, then northeasterly to the point at which it is joined by State Highway 12.
(3)
The boundary follows State Highway 12 through the town of Sebastopol to the point, near a bench mark at elevation 96 feet, at which it intersects a northbound secondary highway (Fulton Road) leading toward the town of Fulton.
(4)
The boundary follows this secondary highway (Fulton Road) north to the town of Fulton where it intersects an east-west secondary highway (River Road).
(i)
East past U.S. Highway 101 (where the name of this secondary highway changes to Mark West Springs Road),
(ii)
Easterly, then northerly to the town of Mark West Springs (where the name of this secondary highway changes to Porter Road),
(iii)
Easterly to the town of Petrified Forest (where the name of this secondary highway changes to Petrified Forest Road), and
(6)
The boundary follows the Sonoma County-Napa County line northerly to the Sonoma County-Lake County line.
(7)
The boundary follows the Sonoma County-Lake County line northwesterly to the section line on the north side of Section 11, Township 10 North, Range 8 West.
(8)
The boundary follows this section line west to the northwest corner of Section 9, Township 10 North, Range 8, West.
(9)
The boundary follows the section line south to the southwest corner of Section 4, Township 9 North, Range 8, West.
(10)
The boundary proceeds northerly along the western lines of section 4, of Township 9 North, Range 8 West, and sections 33, 28, 21, 16, and 9 of Township 10 North, Range 8 West of the Jimtown Quadrangle map.
(11)
The boundary proceeds westerly along the northern lines of sections 8 and 7, Township 10 North, Range 8 West and section 12, Township 10 North, Range 9 West to the southeastern corner of section 2, Township 10 North, Range 9 West.
(12)
The boundary proceeds northwesterly in a straight line to the eastern line of section 3 at 38 degrees 45 minutes latitude, Township 10 North, Range 9 West.
(13)
The boundary proceeds westerly along latitude line 38 degrees 45 minutes to the point lying at 122 degrees 52 minutes 30 seconds longitude.
(14)
The boundary proceeds northwesterly in a straight line to the southeast corner of section 4, Township 11 North, Range 10 West, on the Asti, Quadrangle map.
(15)
The boundary proceeds northeasterly in a straight line to the southeast corner of section 34, Township 12 North, Range 10 West.
(16)
The boundary proceeds north along the east boundary of section 34, Township 12 North, Range 10 West on the U.S.G.S. Topographical Map of Sonoma County, California, to the Sonoma County-Mendocino County line.
(17)
The boundary proceeds along the Sonoma County-Mendocino County line west then south to the southwest corner of section 34, Township 12 North, Range 11 West.
(18)
The boundary proceeds in a straight line east southeasterly to the southeast corner of section 2, Township 11 North, Range 11 West.
(19)
The boundary proceeds in a straight line south southeasterly to the southeast corner of section 24, Township 11 North, Range 11 West.
(20)
The boundary proceeds in a straight line southeasterly across sections 30, 31, and 32 in Township 11 North, Range 10 West, to the point at 38 degrees 45 minutes North latitude parallel and 123 degrees 00 minutes East longitude in section 5, Township 10 North, Range 10 West.
(21)
The boundary proceeds along this latitude parallel west to the west line of section 5, Township 10 North, Range 11 West.
(22)
The boundary proceeds along the section line south to the southeast corner of section 18, Township 9 North, Range 11 West.
(23)
The boundary proceeds in a straight line southwesterly approximately 5 miles to the peak of Big Oat Mountain, elevation 1,404 feet.
(24)
The boundary proceeds in a straight line southerly approximately 2 3/4 miles to the peak of Pole Mountain, elevation 2,204 feet.
(25)
The boundary proceeds in a straight line southeasterly approximately 4 3/4 miles to the confluence of Austin Creek and the Russian River.
(26)
The boundary proceeds along the Russian River northeasterly, then southeasterly to the beginning point.