Westside District
Westside is home to only a few wineries but they are some of the region's most historically important brands. Woodward Canyon Winery, L'Ecole 41, and Waterbrook Winery were all founded in the 1980s making them pioneers in the Walla Walla Valley wine industry.
Westside is the driest wine growing area within the Walla Walla Valley with only about 9 inches (229 mm) of rainfall per year. Thus, expect vineyards here to receive irrigation.