(a) Name. The name of the viticultural area described in this section is “Yadkin Valley”.

(b) Approved maps. The appropriate maps for determining the boundaries of the Yadkin Valley viticultural area are two United States Geological Survey (USGS) topographic maps, scale 1:250,000:

(1) Winston-Salem, N.C.; VA; Tenn. (1953, Limited Revision 1962), and,

(2) Charlotte, North Carolina; South Carolina. (1953, Revised 1974).

(c) Boundaries. The Yadkin Valley viticultural area is located in the State of North Carolina within Wilkes, Surry, Yadkin and portions of Stokes, Forsyth, Davidson, and Davie Counties. The boundaries are as follows:

(1) On the Winston-Salem, N.C.; VA; Tenn. map, the beginning point is 3.6 miles west of the northeast corner of Surry County on the Surry County and North Carolina/Virginia state line at the crest of Slate Mountain. From the beginning point, proceed southeast in a straight line approximately 6.5 miles to the intersection of the Surry/Stokes County line and State Route 89;

(2) Then bear southeast in a straight line for approximately 9 miles to the line's intersection with State Route 66 in the village of Gap (between Sauratown and Hanging Rock Mountains);

(3) Then bear south, following State Route 66 for approximately 9 miles to intersection of State Route 66 and U.S. Route 52;

(4) Then, for approximately 9.5 miles, follow U.S. Route 52 south through Rural Hall and Stanelyville, to the intersection of the Southern Railway track and U.S. Route 52;

(5) Then bear southerly for approximately 2 miles, following the Southern Railway track to where it intersects with U.S. Route 52 in Winston-Salem;

(6) Then follow U.S. Route 52 south for approximately 19.5 miles, crossing on to the Charlotte, North Carolina; South Carolina map, to its intersection with Interstate 85 at Lexington;

(7) Then, follow Interstate 85 southwest for approximately 11 miles to the Yadkin River and bear northwest approximately 4.5 miles along the Yadkin River to the mouth of the South Yadkin River;

(8) Follow the South Yadkin River upstream in a generally northwest direction approximately 3.5 miles to its intersection with U.S. Route 601;

(9) Then continue in a northerly direction, following U.S. Route 601 through the town of Mocksville, onto the Winston-Salem, N.C.; VA; Tenn. map approximately 20 miles to the Davie/Yadkin County line;

(10) Then, following a series of county lines, continue west along the Yadkin/Davie County line to the Yadkin/Davie/Iredell County line intersection, then follow the Yadkin/Iredell County line to the Yadkin/Iredell/Wilkes County line intersection, then follow the Iredell/Wilkes County line to the Iredell/Wilkes/Alexander County line intersection, then follow the Wilkes/Alexander County line to the Wilkes/Alexander/Caldwell County line intersection;

(11) Then bear northwesterly along the Wilkes/Caldwell County line, to the Wilkes/Caldwell/Watauga County intersection;

(12) Then bear northerly along the Wilkes/Watauga County line to the intersection of the Wilkes/Watauga/Ashe County lines;

(13) Then bear generally northeasterly along the Wilkes/Ashe County line, to the Wilkes/Ashe/Alleghany County line intersection;

(14) Then bear generally easterly along the Wilkes/Alleghany County line to the Wilkes/Alleghany/Surry County line intersection;

(15) Then bear northerly along Alleghany/Surry County line to the intersection of the Alleghany/Surry County line and the North Carolina/Virginia border;

(16) Then bear east along the North Carolina/Virginia State line approximately 22.5 miles, returning to the point of beginning 3.6 miles west of the northeast corner of Surry County.