Columbia Hills: Washington's Newest Wine Region

You might care about this because the Alcohol and Tobacco Tax and Trade Bureau (TTB) has officially established the "Columbia Hills" American Viticultural Area (AVA) in Washington state. This new wine grape growing region covers 29,387 acres in Klickitat County. It is located entirely within the existing Columbia Valley AVA. The TTB designates AVAs to help winemakers describe where their wines come from. This also helps consumers identify wines based on their geographic origin. The decision followed a petition that highlighted the Columbia Hills' unique natural characteristics. These include its specific topography, soils, and climate, which make it different from neighboring areas. For example, the region has south-facing terraces and gravel bars formed by ice-age floods. Its soils are well-drained and coarser than typical soils in the wider Columbia River basin. The nearby Columbia River also moderates the climate, leading to warmer growing season temperatures. These factors allow for the cultivation of specific grape varieties. The establishment of this AVA means that wines made from grapes grown in Columbia Hills can now use this name on their labels, providing more specific origin information. This rule goes into effect on September 16, 2026. What makes the Columbia Hills AVA particularly interesting is how its distinct natural conditions create a unique environment for grape growing. The area sits on the southern slopes of the Columbia Hills, which run alongside the Columbia River. Ancient ice-age floods shaped this terrain, leaving behind stepped terraces and gently sloping gravel bars. These features offer excellent locations for vineyards, standing out from the region's generally steep valley. The soils are another distinguishing factor. They are very well-drained and much coarser than the typical loess-based soils found elsewhere in the Columbia River basin. These coarse soils warm up faster, which encourages grapevines to root deeply. The Columbia River also plays a special role, acting as a thermal reservoir. This means the proposed AVA generally has warmer growing season temperatures, especially in the early mornings, compared to surrounding regions. This warm climate helps grapes ripen more quickly. It also makes the area suitable for growing specific warm-climate grape varieties like Grenache and Mourvedre. These particular combinations of land, soil, and weather truly set the Columbia Hills apart. Several groups will find the establishment of the Columbia Hills AVA highly relevant. Winemakers and vineyard owners in Washington, particularly within Klickitat County, are directly affected. This new designation provides them with a specific identity for their wines, which can aid in marketing and branding. Wine consumers who appreciate Washington wines or seek specific regional characteristics will also be interested. The AVA offers them more detailed information about the wine's origin and potential style. Businesses involved in regional tourism and economic development in Klickitat County might also see benefits. The AVA could attract more wine tourism and investment to the area. Legal professionals and researchers interested in agricultural law, trade regulations, or the process of establishing appellations of origin may also find this Federal Register document insightful. Finally, wine enthusiasts and experts who follow the development of American wine regions will want to know about this new addition to the viticultural map.