of the 20th century the valley became increasingly suburbanized and now forms a distinct cultural area that rivals Portland itself in political and economic influence. The communities along the Tualatin Valley Highway (the descendant of the old plank road), form a suburban corridor stretching west of Beaverton. Beaverton is famous as the location of the Nike, Inc. campus, the company's world-wide headquarters. Nike, along with Intel in Hillsboro, provide a large base of employment in the valley. Much of the valley is now within the Portland urban growth boundary, resulting in a suburban growth patterns that interspersed with remaining areas of orchards and farm fields. Most of the communities in the valley are served by TriMet, the Portland-area mass transit agency. In 1998, the MAX Light Rail system was extended from Portland into the valley as far as Hillsboro. Tualatin Valley sits at the northwestern edge of the Willamette Valley, known for its production of wine, especially Pinot noir. Established in 1970 in Tualatin Valley, Ponzi Vineyards was among the first Oregon wineries to produce estate-grown Pinot Noir. Its 130 acres of family-owned vineyards are LIVE Certified Sustainable and it is one of the largest wineries in Oregon. As of June 3, 2020, Ponzi Vineyards is located within the Laurelwood District AVA which was approved by the Alcohol and Tobacco Tax and Trade Bureau (TTB). The Tualatin Hills AVA was also approved at the same time in 2020. The two AVAs share a small portion of their boundaries and contain among the highest concentrations of Laurelwood soils in the state. Geography The valley is traversed by the Tualatin River and is bordered on the north and east by the Tualatin Mountains, a spur of the Northern Oregon Coast Range. The latter range also comprises the valley's western border. To the south lie the Chehalem Mountains, separating the region from the main Willamette Valley. The Tualatin River flows mainly from the west to the east and leaves the valley in the southeast at West Linn in Clackamas County. Tualatin Valley's geographical center is located southeast of Hillsboro, and the general elevation of the valley is above sea-level. Attractions Tualatin River National Wildlife Refuge L.L. Stub Stewart State Park Scoggins Valley Park & Henry Hagg Lake Jackson Bottom Wetlands Preserve Rice Northwest Museum of Rocks and Minerals See also Tualatin Plains References Valleys of Oregon Regions of Oregon Landforms of Washington County,