9.90—Willamette Valley.
(b) Approved maps.
The appropriate maps for determining the boundaries of the Willamette Valley viticultural area are three U.S.G.S. Oregon maps scaled 1:250,000. They are entitled:
(c) Boundaries.
The Willamette Valley viticultural area is located in the northwestern part of Oregon, and is bordered on the north by the Columbia River, on the west by the Coast Range Mountains, on the south by the Calapooya Mountains, and on the east by the Cascade Mountains, encompassing approximately 5,200 square miles (3.3 million acres). The exact boundaries of the viticultural area, based on landmarks and points of reference found on the approved maps, are as follows: From the beginning point at the intersection of the Columbia/Multnomah County line and the Oregon/Washington State line;
(1)
West along the Columbia/Multnomah County line 8.5 miles to its intersection with the Washington/Multnomah County line;
(2)
South along the Washington County line 5 miles to its intersection with the 1,000 foot contour line;
(3)
Northwest (15 miles due northwest) along the 1,000 foot contour line to its intersection with State Highway 47, .5 mile north of “Tophill”;
(4)
Then, due west from State Highway 47 one-quarter mile to the 1,000 foot contour line, continuing south and then southwest along the 1,000 foot contour line to its intersection with the Siuslaw National Forest (a point approximately 43 miles south and 26 miles west of “Tophill” ), one mile north of State Highway 22;
(6)
Continue along the 1,000 foot contour line (approximately 23 miles) east, south, and then west, to a point where the Polk County line is intersected by the Lincoln/Benton County line;
(7)
South along Lincoln/Benton County line, 11 miles to its intersection with the Siuslaw National Forest line;
(8)
East along the Siuslaw National Forest line six miles, and then south along the Siuslaw National Forest line six miles to State Highway 34 and the 1,000 foot contour line;
(9)
South along the 1,000 foot contour line to its intersection with Township line T17S/T18S (31 miles southwest, and one mile west of State Highway 126);
(10)
East along T17S/T18S 4.5 miles to Range line R6W/R7W, south along this range line 2.5 miles to the 1,000 foot contour line;
(11)
Southeast along the 1,000 foot contour line to R5W/R6W (approximately six miles); southeast from this point eight miles to the intersection of R4W/R5W and T19S/T20S;
(13)
Following the 1,000 foot contour line north around Spencer Butte, and then south to a point along the Lane/Douglas County line one-half mile north of Interstate Highway 99;
(15)
Following the 1,000 foot contour line around the valleys of Little River, Mosby Creek, Sharps Creek and Lost Creek to the intersection of R1W/R1E and State Highway 58);
(16)
North along R1W/R1E, six miles, until it intersects the 1,000 foot contour line just north of Little Fall Creek;
(17)
Continuing along the 1,000 foot contour line around Hills Creek, up the southern slope of McKenzie River Valley to Ben and Kay Dorris State Park, crossing over and down the northern slope around Camp Creek, Mohawk River and its tributaries, Calapooia River (three miles southeast of the town of Dollar) to a point where Wiley Creek intersects R1E/R1W approximately one mile south of T14S/T13S;
(20)
Continuing in a general northerly direction along the 1,000 foot contour line around Crabtree Creek, Thomas Creek, North Santiam River (to its intersection with Sevenmile Creek), and Little North Santiam River to the intersection of the 1,000 foot contour line with R1E/R2E (approximately one mile north of State Highway 22);
(28)
North along R5E/R6E 10.5 miles to a point where it intersects the Mount Hood National Forest boundary (approximately three miles north of Interstate Highway 26);
(29)
West four miles and north one mile along the forest boundary to the 1,000 foot contour line (just north of Bull Run River);
(30)
North along the 1,000 foot contour line, into Multnomah County, to its intersection with R4E/R5E;