Skip to main content
Home Certified California Sustainable

Main navigation

  • FIND
  • VISIT
  • LEARN

Certified California Sustainable Winery

Trefethen Family Winery

P.O. Box 2460 Napa California 94558
https://www.trefethen.com/
Show on Map
Company
Trefethen Family Vineyards
County
Napa
Region
North Coast
Trefethen Family Winery

Become a California Sustainable Winegrowing Ambassador

Take this free one-hour course to learn about sustainable winegrowing — now offered in English and Spanish.

Kiwi standing on oval

Main navigation

  • FIND
  • VISIT
  • LEARN

info@sustainablewinegrowing.org
About CSWA | Copyright 2021 | Privacy Disclaimer

Work for a California winery or vineyard and want to get certified? Learn more.