(a) Name. The name of the viticultural area described in this section is “Red Hill Douglas County, Oregon”. For purposes of part 4 of this chapter, “Red Hill Douglas County, Oregon” is a term of viticultural significance.

(b) Approved Maps. The appropriate maps for determining the boundary of the Red Hill Douglas County, Oregon viticultural area are three United States Geological Survey (USGS), 1:24,000 scale, topographic maps. They are:

(1) Sutherlin, OR (Provisional edition 1988);

(2) Scotts Valley, OR (Provisional edition 1987); and

(3) Yoncalla, OR (Provisional edition 1987).

(c) Boundary. The Red Hill Douglas County, Oregon viticultural area is located in Douglas County, Oregon, east of Interstate 5 near the hamlet of Rice Hill, between the villages of Yoncalla and Oakland.

(1) Beginning on the Yoncalla map along the southern boundary of section 35, T23S/R5W, at the point where a pipeline crosses the T23S/T24S township line, proceed due west 0.8 mile along the T23S/T24S township line to its intersection with the 800-foot contour line just west of Pollock Creek in section 34, T23S/R5W (Yoncalla Quadrangle); then

(2) Proceed southerly along the meandering 800-foot contour line, cross onto the Sutherlin map in section 10, T24S/R5W, and continue westerly along the 800-foot contour line to its first intersection with the eastern boundary of section 8, T24S/R5W (Sutherlin Quadrangle); then

(3) Proceed northerly along the meandering 800-foot contour line, return to the Yoncalla map in section 9, T23S/R5W, and continue northerly along the 800-foot contour line to its intersection with the T23S/T24S township line very near the northwest corner of section 4, T24S/R5W (Yoncalla Quadrangle); then

(4) Proceed northeasterly along the 800-foot contour line, cross Wilson Creek in the northern portion of section 23, T23S/R5W, pass onto the Scotts Valley map at Section 14, T23S/R5W, and continue northeasterly along the 800-foot contour line to its intersection with the R4W/R5W range line, which at that point is also the eastern boundary of section 1, T23S/R5W (Scotts Valley Quadrangle); then

(5) Proceed southwesterly along the 800-foot contour line, re-cross the R4W/R5W range line, and continue to the second intersection of the 800-foot contour line and the pipeline in section 1, T23/R5W (Scotts Valley Quadrangle); then

(6) Proceed 5.75 miles southwesterly along the pipeline, cross Wilson Creek in section 24, T23S/R5W, return to the Yoncalla map in section 26, T23S/R5W, and continue southwesterly along the pipeline to the point of beginning at the intersection of the pipeline intersection and the T23S/T24S township line in section 35, T23S/R5W (Yoncalla Quadrangle).