High Valley AVA

High Valley AVA - Lake County
Appropriately named, this area’s high hanging valley ringed with steep volcanic hillsides produces mountain fruit with great color and structure.

Higher elevations and Lake County’s pure air allow for greater levels of UV light, as much as 10% more than neighboring sea level valleys. This extra UV triggers thicker grape skins, greater tannins, and intense wines with high phenolic levels.

Situated above the northeast shores of Clear Lake in Lake County, this distinct growing area is defined by steep mountain ridges rising up to 3,000 feet directly from this hanging valley’s floor at 1,700 feet. Approximately nine miles long and three miles wide, this rare east-west transverse in the Californian coastal range was created by volcanic activity of Round Mountain.

Elevation Vineyard elevations range from 1,700 to 2,400 feet.
Acreage 977 acres.
Varietals Cabernet Sauvignon, Cabernet Franc, Merlot, Syrah, Zinfandel, Petite Sirah, Petite Verdot, Malbec, Grenache, Mourvedre, Tempranillo, Pinot Noir.
Soils The distinct watershed boundaries of this region determine that soils found within the High Valley area are derived only from parent material found within the basin. Brick-red volcanic cinders and pumice-like gravel and stones allow for superior drainage. The western edge and middle of High Valley are composed of gravelly loams created from eroded Franciscan shales.
Climate Elevation along with the cooling effects of Clear Lake create a natural and perpetual “wind machine.” During July and August, daily temperature swings of 50 degrees are not uncommon. This intense cooling effect promotes good acidity, improved tannic structure, darker color, and more concentrated fruit character.

Lake County AVA Map

One-page overview of the High Valley AVA (PDF)

Calendar of Events

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LCWC Board Meeting 4:00 pm
LCWC Board Meeting @ LCWC Office
Dec 3 @ 4:00 pm – 5:15 pm
Agenda – LCWC Board Meeting, December 3, 2019
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Crop Insurance Webinar Series 10:00 am
Crop Insurance Webinar Series
Dec 4 @ 10:00 am – 11:00 am
Crop Insurance Webinar Series
Crop Insurance 101 As the harvest season wraps up, it’s time to start planning for next year. An important part of your 2020 planning process is risk management of your most valuable asset – –[...]
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Crop Insurance Webinar Series 10:00 am
Crop Insurance Webinar Series
Dec 11 @ 10:00 am – 11:00 am
Crop Insurance Webinar Series
Crop Insurance 102 Whether you are new to crop insurance or you’ve been purchasing it for many years, CAWG is committed to bringing you education on the most current industry topics. Our Crop 102 webinar[...]
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UCCE Lake & Mendocino IPM Seminar 7:30 am
UCCE Lake & Mendocino IPM Seminar @ UC Hopland Research and Extension Center
Dec 13 @ 7:30 am – 5:00 pm
22nd Annual UCCE Lake & Mendocino IPM Seminar   UC Hopland Research and Extension Center 4070 University Road, Hopland Rod Shippey Hall Friday, December 13, 2019 Doors open 7:30 am for Registration Seminar starts at[...]
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Crop Insurance Webinar Series 10:00 am
Crop Insurance Webinar Series
Dec 18 @ 10:00 am – 11:00 am
Crop Insurance Webinar Series
Whole Farm Revenue Protection Want to protect your crop against price and market losses? Maybe Whole Farm Revenue Protection (WFRP) is for you! Join CAWG on Wednesday, December 18th at 10:00 am to learn more[...]
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