How many smaller AVAs are contained within the Willamette Valley AVA?

The Willamette Valley AVA, a prominent wine-producing region in Oregon, contains six smaller AVAs. These sub-AVAs are McMinnville, Dundee Hills, Yamhill-Carlton, Chehalem Mountains, Eola-Amity Hills, and Tualatin Hills. Each of these AVAs has unique climates and soils that contribute distinct characteristics to the wines produced there. Understanding the number of AVAs within Willamette Valley is essential for recognizing the diversity of wine styles and terroirs in this acclaimed region, which is particularly known for its Pinot Noir and Chardonnay. The significance of this knowledge highlights the importance of terroir in winemaking and how different areas can yield different expressions of the same grape varieties.