The first winery in Washington was founded in the 1950s. Ironically it was founded in the Eastern part of Washington, which is generally too cold and wet for viticulture. It was however, less than an hour from Seattle, their primary (and only) market. Washington is the second largest producer in the United States behind California, and nearly 99% of all grapes are grown West of the Cascade Mountains in the dry, warm and irrigated parts of the state. In terms of visiting wineries the best place is Woodinville, less than an hour from Seattle. Just don’t expect any vineyards.