Chehalem Mountains AVA

Modern winegrowing in the Chehalem Mountains began in 1968 when UC Davis alumnus Dick Erath purchased 49 acres on Dopp Road in Yamhill County and named it Chehalem Mountain Vineyards. He was quickly followed by Dick and Nancy Ponzi, who established Ponzi Vineyards in 1970, and by David and Ginny Adelsheim, who purchased their first 19 acres just outside Newberg in 1971 and planted Pinot Noir starting in 1972. Adelsheim Vineyard became the first bonded winery in the Chehalem Mountains in 1978. The formal AVA petition was submitted in 2002 by David Adelsheim, Paul Hart of Rex Hill Vineyard, and Richard Ponzi, with the AVA officially designated on November 27, 2006.

• Dick Erath planted the first modern vineyard in 1968, establishing the Chehalem Mountains as a serious wine region
• Ponzi Vineyards, founded 1970, was acquired by Groupe Bollinger in 2021, becoming the French company's first property outside France
• Adelsheim Vineyard, founded 1978, became the Chehalem Mountains' first winery and its founder led the AVA petition process beginning in 2001
• Harry Peterson-Nedry of Chehalem Winery planted the first Pinot Noir on Ribbon Ridge in 1980, setting the stage for that area's own AVA designation in 2005

The Chehalem Mountains AVA is a single uplifted landmass stretching 20 miles from Wilsonville in the southeast to Forest Grove in the northwest, encompassing more than 100 square miles across Yamhill, Washington, and Clackamas counties. Bald Peak, at 1,633 feet, is the highest point in the entire Willamette Valley. The mountains shelter vineyards from winds funneling south through the Columbia Gorge and contribute to the greatest variation in both temperature and annual precipitation found anywhere in the Willamette Valley, ranging from 37 inches at lower elevations to 60 inches at the highest. Located 45 miles east of the Pacific Ocean, the region experiences cool maritime influence that preserves natural acidity in its grapes.

• Bald Peak at 1,633 feet is the highest point in the Willamette Valley; all vineyards must sit above 200 feet elevation
• Greatest temperature and precipitation variation in the Willamette Valley: 37 to 60 inches of annual rainfall depending on elevation
• Mountains shelter vines from Columbia Gorge winds, creating diverse mesoclimates across the landmass
• Located 20 miles southwest of Portland and 45 miles east of the Pacific Ocean, balancing accessibility with cool-climate maritime influence

The defining geological characteristic of Chehalem Mountains AVA is its exceptional diversity of soil types, all three major Willamette Valley hillside soils present within a single landmass. Volcanic basalt soils, formed from ancient lava flows carried down the Columbia River, produce structured, mineral-driven wines. Marine sedimentary soils, particularly the Willakenzie series found throughout Ribbon Ridge, originated as ancient ocean seabeds uplifted over millions of years. Loess soils, named the Laurelwood series, dominate the north and east-facing slopes where glacial silt was deposited by powerful windstorms during the last Ice Age. This geological diversity underpins the two nested sub-AVAs and gives producers an unusually broad palette of site expression.

• Volcanic basalt: iron-rich red soils from ancient Columbia River lava flows, promoting structure and mineral intensity in Pinot Noir
• Marine sedimentary (Willakenzie): ancient ocean seabed uplift, finer-grained and younger, defining the Ribbon Ridge sub-AVA
• Loess (Laurelwood series): wind-blown glacial silt over fractured basalt on north and east-facing slopes, defining the Laurelwood District sub-AVA
• Soil diversity across a compact area gives winemakers three radically different terroir expressions within the same AVA

Pinot Noir dominates plantings at approximately 70 percent of the total, yielding wines in a spectrum of styles reflecting the diversity of soils and elevations. Volcanic soils tend to produce structured, aromatic wines with violet, spice, and dark fruit; Willakenzie sedimentary sites lean toward velvety texture with dark cherry and minerality; Laurelwood loess sites from older vines show violet, anise, and white pepper aromatics with blue and black fruit. Chardonnay and Pinot Gris are the next most significant varieties, benefiting from the same cool-climate acidity preservation. Secondary plantings include Pinot Blanc, Riesling, Gamay Noir, and Gruner Veltliner, reflecting the region's cool-climate versatility.

• Pinot Noir: approximately 70 percent of plantings, ranging from light and fruit-driven to concentrated old-vine expressions with aging potential
• Chardonnay and Pinot Gris: the next most planted varieties, producing crisp, aromatic styles with natural acidity
• Pinot Blanc, Riesling, Gamay Noir, and Gruner Veltliner are also grown, reflecting the diversity of cool-climate varieties the region supports
• Soil type strongly influences style: volcanic sites give structure, sedimentary gives texture, loess gives aromatic complexity

Chehalem Mountains is home to 53 wineries across its broad landmass, with a strong tradition of small, family-owned estates averaging just 12.5 planted acres. Ponzi Vineyards, founded by Dick and Nancy Ponzi in 1970 and now under the ownership of Groupe Bollinger since 2021, remains among the most internationally recognized estates, acclaimed for Pinot Noir and Chardonnay from Laurelwood District fruit. Adelsheim Vineyard, the region's first winery (1978), now farms 174 acres across multiple estate sites spanning volcanic, sedimentary, and loess soils. Chehalem Winery, founded by Harry Peterson-Nedry and tracing its roots to the first Ribbon Ridge vineyard planted in 1980, is a long-standing producer of Pinot Noir and aromatic whites. Rex Hill Vineyard, co-founded by Paul Hart in the early 1970s, was one of the three estates that co-petitioned for AVA status.

• Ponzi Vineyards: founded 1970, now owned by Groupe Bollinger; benchmark producer of Pinot Noir and Chardonnay on Laurelwood District soils
• Adelsheim Vineyard: Chehalem Mountains' first winery (1978), farming 174 acres across volcanic, sedimentary, and loess estate sites
• Chehalem Winery: rooted in the first Ribbon Ridge vineyard (1980), producing Pinot Noir and a range of dry white wines
• A patchwork of roughly 150 to 179 small, family-owned vineyards averaging 12.5 acres each defines the region's artisan character

Chehalem Mountains AVA encompasses approximately 62,500 total acres and requires that wines labeled with the appellation contain at least 85 percent of fruit sourced from within its boundaries. The AVA was officially established November 27, 2006, after the petition process began in 2001. Two nested sub-AVAs further distinguish the region: Ribbon Ridge AVA, established in 2005 and defined by its Willakenzie marine sedimentary soils, and Laurelwood District AVA, approved in 2020 and delineated by the distinctive windblown loess Laurelwood soil series. Producers may choose to label wines at any level from a nested sub-AVA up to Willamette Valley or Oregon if grape sourcing qualifies.

• Established November 27, 2006; total area approximately 62,500 acres across three counties
• 85 percent minimum grape sourcing requirement for wines bearing the Chehalem Mountains designation
• Ribbon Ridge AVA (2005), nested within Chehalem Mountains, defined by Willakenzie marine sedimentary soils
• Laurelwood District AVA (2020), also nested within Chehalem Mountains, defined by Laurelwood loess soils on north and east-facing slopes

Chehalem Mountains offers one of Oregon wine country's most accessible and intimate tasting experiences. The AVA is just 20 miles southwest of Portland, making it an easy day trip or weekend destination, and it touches three counties spanning a broad, rural landscape of hilltop farms, old-growth fir forests, and dramatic ridge views. More than 250 vineyards, wineries, and tasting rooms are spread across the region. Many producers maintain small-scale, appointment-friendly tasting rooms that emphasize education and personal connection. The nearby towns of Newberg and Sherwood provide dining, lodging, and additional hospitality options, and the broader Willamette Valley infrastructure in McMinnville is within easy reach.

• Located 20 miles southwest of Portland, among the most accessible wine regions in the Pacific Northwest
• More than 250 vineyards, wineries, and tasting rooms across a rural, scenic landscape spanning three counties
• Intimate, appointment-focused tasting culture at many small estate producers prioritizes education over mass tourism
• Nearby towns of Newberg, Sherwood, and the broader McMinnville area provide dining, lodging, and wine country hospitality