(a)Name. The name of the viticultural area described in this section is "Comptche". For purposes of part 4 of this chapter, "Comptche" is a term of viticultural significance.(b)Approved maps. The one United States Geological Survey (USGS) 1:24,000 scale topographic map used to determine the boundary of the viticultural area is titled Comptche, California (provisional edition 1991).(c)Boundary. The Comptche viticultural area is located in Mendocino County, California. The boundary of the Comptche viticultural area is as described as follows:(1) The beginning point is on the Comptche map at the intersection of a north-south tributary of the Albion River and an unnamed improved road known locally as Comptche Ukiah Road, section 12, T16N/R16W. From the beginning point, proceed northwest in a straight line, crossing an unnamed, unimproved road known locally as Surprise Valley Road, to the 400-foot elevation contour, section 12, T16N/R16W; then(2) Proceed north, then easterly along the 400-foot elevation contour to its intersection with an unnamed, unimproved road southeast of the marked 517-foot peak in section 1, T16N/R16W; then(3) Proceed southeasterly along the unnamed, unimproved road to its intersection with an unnamed, unimproved road known locally as Surprise Valley Road, section 1, T16N/R16W; then(4) Proceed northeasterly along Surprise Valley Road to its intersection with an unnamed, unimproved road known locally as North Fork Road, section 1, T16N/R16 W; then(5) Proceed northwesterly along North Fork Road to its intersection with an unnamed, unimproved road known locally as Docker Hill Road in section 36, T17N/R16W; then(6) Proceed north along Docker Hill Road to its intersection with the 400-foot elevation contour, section 36, T17N/R16W; then(7) Proceed easterly along the 400-foot elevation contour to its intersection with the North Fork of the Albion River in section 37, T17N/R15W; then(8) Continue in a generally southerly direction along the 400-foot elevation contour to its intersection with an unnamed intermittent creek in section 6, T16N/R15W; then(9) Proceed south in a straight line to the 400-foot elevation contour, section 6, T16N/R15W; then(10) Proceed southeasterly, then north, then southeasterly along the meandering 400-foot elevation contour to its intersection with the Albion River in section 8, T16N/R15W; then(11) Proceed westerly along the Albion River to its intersection with a north-south tributary in section 12, T16N/R16W; then(12) Proceed northeasterly along the tributary, returning to the beginning point.(d)Exclusion. The Comptche viticultural area as described in this section is not included within the North Coast viticultural area as described in § 9.30 .