Van Duzer Corridor AVA

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Van Duzer Corridor AVA
Wine region
Type American Viticultural Area
Year established2019 [1]
CountryUnited States
Part of Oregon, Willamette Valley AVA, Polk County
Other regions in Oregon, Willamette Valley AVA, Polk County Eola-Amity Hills AVA, Mt. Pisgah, Polk County, Oregon AVA
Climate region Maritine
Soil conditionsMarine sediment with basalt over siltstone bedrock [2]
Total area59,871 acres (24,229 ha) [2]
Size of planted vineyards1,000 acres (405 ha) [2]
No. of vineyards18 [2] [3]
Varietals produced Pinot noir, Pinot gris, Pinot blanc, Sauvignon Blanc, Chardonnay, Riesling, Viognier [4]
No. of wineries9 [3] [5]

Van Duzer Corridor is an American Viticultural Area (AVA) located within Polk County, Oregon, established by the Alcohol and Tobacco Tax and Trade Bureau on December 13, 2018 and effective January 14, 2019. [6] [7] [8] Van Duzer Corridor lies entirely within the established Willamette Valley AVA and covers approximately 59,871 acres (24,229 ha). When the petition was submitted there were 17 (now 18 [3] ) commercially-producing vineyards covering a total of approximately 1,000 acres (400 ha), as well as six wineries (now 9 [3] ), within the AVA. [2]

Contents

The distinguishing features of the Van Duzer Corridor AVA are its topography, climate, and soils.

Map of the Van Duzer Corridor AVA courtesy of the Oregon Wine Board Oregon-Wine-Van-Duzer-Map.jpg
Map of the Van Duzer Corridor AVA courtesy of the Oregon Wine Board

Topography

Topography is characterized by low elevations and gently rolling hills. The low elevations allow cool breezes to flow relatively unimpeded from the Pacific Ocean, through the Oregon Coast Range, forming a wind corridor gap known as the Van Duzer corridor. The western end of the Van Duzer Corridor wind gap is narrow and squeezed by high elevations to the north and south, leaving little room for viticulture. However, the eastern end of the Van Duzer Corridor wind gap, where the Van Duzer Corridor AVA is located, features the same low elevations and rolling hills as the western portion, with the distinction of having a wider area suitable for vineyards. Within the Van Duzer Corridor AVA, the elevation does not impede the eastward-flowing marine air, allowing higher wind speeds to flow through. In contrast, the surrounding regions all have higher elevations. [2]

Climate

Climate is characterized by consistent high wind speeds and low cumulative growing degree-day (GDD) accumulations. The consistently high winds in the AVA contribute to thicker grape skins, and raise the levels of phenolic compounds in the fruit. In contrast, the wind speeds to the north and south southeast of the AVA are slower. The Van Duzer Corridor has lower GDD accumulations than surrounding regions to the north and southeast, indicating that its temperatures are generally cooler. The cooler temperatures ripen the fruit slowly, creating a longer hang time than for the same grape varietal grown in a region with higher GDD accumulations. The longer hang time contributes to a reduced acidity level. [2]

Soils

Soils are primarily uplifted marine sedimentary loams and silts with alluvial overlay, as well as some uplifted basalt. The soils are typically shallow, well-drained, and have a bedrock of siltstone. The high silt and clay levels in the soils balance the overall pH level of the soil by buffering against a sudden increase or decrease in soil pH. The buffering effect is beneficial to vineyards because it boosts the ability of the soils to maintain a stable pH level. In contrast, the soils immediately outside the northern and western boundaries contain soils from different soil series. Farther north and west, the soils contain higher concentrations of basalt and other volcanic materials. In contrast, east of the Van Duzer Corridor AVA, within the Eola-Amity Hills AVA the soils contain larger amounts of volcanic material than the AVA. Additionally, south of the AVA, the soils contain large concentrations of Ice Age loess, which is not found in the Van Duzer Corridor AVA. [2]

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<span class="mw-page-title-main">Dahlonega Plateau AVA</span> American Viticultural Area in Georgia

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MountPisgah, Polk County, Oregon is an American Viticultural Area (AVA) in the northern Willamette Valley of Oregon located in Polk County. It was established on June 3, 2022 by the Alcohol and Tobacco Tax and Trade Bureau (TTB), Treasury as the state's 23rd and the 11th appellation in the Willamette Valley viticultural area. It encompasses approximately 5,850 acres (9 sq mi) and contains 10 commercial vineyards cultivating about 648 acres (262 ha) under vine with two wineries. The viticultural area surrounds the 835 ft (255 m) summit of Mount Pisgah among the hills of the Willamette Valley located southwest of Eola Hills, Amity Hills and 15 mi (24 km) from the state capital of Salem. TTB received the petition from the representatives of the local vineyards and wineries proposing a viticultural area named "Mount Pisgah, Polk County, Oregon." It is the southernmost sub-region within the established Willamette Valley viticultural area. The petition notes that vineyard owners plan to expand four of the existing vineyards by a total of 164 acres (66 ha).

References

  1. ↑ "§9.265 Van Duzer Corridor" (Title 27: Alcohol, Tobacco and Firearms; Part 9— American Viticultural Areas; Subpart C— Approved American Viticultural Areas). Code of Federal Regulations (e-CFR). Retrieved May 20, 2020.
  2. 1 2 3 4 5 6 7 8 "Establishment of the Van Duzer Corridor Viticultural Area and Clarification of the Eola-Amity Hills Viticultural Area Boundary Description" (27 CFR 9 83 FR 64276). Alcohol and Tobacco Tax and Trade Bureau. December 14, 2018. pp. 64276–64280.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  3. 1 2 3 4 "Perseverance Prevails". Oregon Wine Press. February 1, 2019. Retrieved February 7, 2019.
  4. ↑ "Van Duzer Corridor". Oregon Wine Board. Retrieved May 20, 2020.
  5. ↑ "Willamette Valley wine fans will see 'Van Duzer Corridor' on labels". OregonLive. The Oregonian. December 18, 2018.
  6. ↑ Teel, Emily (December 14, 2018). "Van Duzer Corridor named Willamette Valley's newest AVA American Viticultural Area". Statesman Journal. Retrieved January 20, 2019.
  7. ↑ Guzman, Jolene (January 2, 2019). "Van Duzer gets its own AVA". Polk County Itemizer-Observer. Retrieved January 20, 2019.
  8. ↑ Murdoch, Sally (January 15, 2019). "Van Duzer Corridor AVA Approval Shows Location Matters in Oregon". Oregon Wine Industry. Retrieved January 20, 2019.

44°59′08″N123°16′43″W / 44.9856°N 123.2787°W / 44.9856; -123.2787

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