Contra Costa

(1) The beginning point is on the Bouldin Island map at the northernmost point of Holland Tract Road. From the beginning point, proceed south 1.9 miles along Holland Tract Road, crossing onto the Woodward Island map, to the intersection of the road with the 10-foot elevation contour; then (2) Proceed south-southeast in a straight line 4.1 miles to the intersection of Orwood Road and the Mokelumne Aqueduct; then (3) Proceed south-southwest in a straight line 5.5 miles, crossing onto the Clifton Court Forebay map, to the stream gauging station on Italian Slough, just west of the Widdows Island and the shared Contra Costa-San Joaquin County line; then (4) Proceed due west in a straight line to the western shore of Italian Slough, then proceed southwesterly along the western shore Italian Slough to its confluence with Brushy Creek; then (5) Proceed westerly along Brushy Creek, crossing onto the Byron Hot Springs map and continuing southwesterly along the creek to its intersection with Vasco Road; then (6) Proceed northwest in a straight line 4.3 miles to the intersection of Kellogg Creek and Walnut Boulevard; then (7) Proceed west-southwest in a straight line 2.9 miles, crossing onto the Tassajara map, to the intersection of Marsh Creek and Miwok Trail; then (8) Proceed northwesterly along Marsh Creek 2.4 miles, crossing onto the Antioch South map, to the creek's intersectio…