(a) Name. The name of the viticultural area described in this section is “Eola-Amity Hills”. For purposes of part 4 of this chapter, “Eola-Amity Hills” is a term of viticultural significance.

(b) Approved maps. The appropriate maps for determining the boundary of the Eola-Amity Hills viticultural area are six United States Geological Survey 1:24,000 scale topographic maps. They are titled—

(1) Rickreall, Oregon, 1969, photorevised 1976;

(2) Salem West, Oregon, 1969, photorevised 1986;

(3) Mission Bottom, Oregon, 1957, revised 1993;

(4) Dayton, Oregon, 1957, revised 1992;

(5) McMinnville, Oregon, 1957, revised 1992; and

(6) Amity, Oregon, 1957, revised 1993.

(c) Boundary. The Eola-Amity Hills viticultural area is located in the State of Oregon, within Polk and Yamhill Counties, and is entirely within the Willamette Valley viticultural area. The area's boundary is defined as follows—

(1) The beginning point is on the Rickreall, Oregon, map at the intersection of State Highway 22 and Rickreall Road, near the Oak Knoll Golf Course, in section 50, T7S, R4W;

(2) From the beginning point, proceed east on State Highway 22 to its intersection with Doaks Ferry Road on the Salem West, Oregon, map; then

(3) Proceed northeast on Doaks Ferry Road to its intersection with the 200-foot contour line southeast of Gibson Gulch, in section 65; then

(4) Follow the 200-foot contour line in a westerly loop until it rejoins Doaks Ferry Road; then

(5) Continue north on Doaks Ferry Road to its intersection with State Highway 221; then

(6) Continue north on State Highway 221 to its intersection with the 200-foot contour line at the point where the contour line departs from Highway 221 and runs southwest along the southern edge of Spring Valley (section 53 on the Mission Bottom, Oregon, map); then

(7) Follow the 200-foot contour line first south onto the Salem West, Oregon, map, then northwest around the southern and western edge of Spring Valley and back on to the Mission Bottom, Oregon, map; then

(8) Continue to follow the 200-foot contour line generally north on the Mission Bottom, Oregon, map, crossing onto and back from the Amity, Oregon, map and continue past the Yamhill County line and onto the Dayton, Oregon, map; then

(9) Follow the 200-foot contour line from the Dayton, Oregon, map onto the McMinnville, Oregon, map and back to the Dayton, Oregon, map and continue around the northeast edge of the Amity Hills spur of the Eola Hills; then

(10) Follow the 200-foot contour line onto the McMinnville, Oregon, map as it continues around the northern and western periphery of the Amity Hills spur; then

(11) Follow the 200-foot contour line onto the Amity, Oregon, map as it heads first south, then generally southeast, then generally south, along the western edge of the Eola Hills until it intersects Old Bethel Road at a point just north of the Polk County line; then

(12) Follow Old Bethel Road, which becomes Oak Grove Road, south until the road intersects the 200-foot contour line approximately 400 feet north of Oak Grove Road's northern intersection with Zena Road, just northwest of Bethel; then

(13) Follow the 200-foot contour line easterly and then southerly until its first intersection with Zena Road, and then follow Zena Road west approximately 0.25 mile to its southern intersection with Oak Grove Road, south of Bethel; then

(14) Follow Oak Grove Road south until it intersects with Frizzell Road; then

(15) Follow Frizzell Road west for approximately 0.25 mile to its first intersection with the 200-foot contour line, then

(16) Follow the 200-foot contour line generally south, crossing onto the Rickreall, Oregon, map, until the contour line intersects the beginning point.