Our Story
The Nipomo Wine Group was created in 2004 by four couples who share a passion for making wine and enjoying the life style of the California Central Coast. Each one of us brings a unique skill to the company which includes: wine making, business administration, marketing, scientific theory, cooking, and wine & food pairing.
The name Phantom Rivers was selected for our winery as it pertains to the misty fog that evaporates into the air. Streams of fog flow in and out of the valleys and wind their way up the old maritime valleys hugging the courses of ancient rivers. This fog cools the vineyards at night and early morning which extends the hang time of the grapes on the vine. This all adds to the distinctive flavors and complexities of Central Coast Wines.
We do not believe a single property is capable of producing the best fruit for each varietal, as the terroir required for each varietal is different. Therefore we focus our efforts in finding the perfect area for each varietal and purchasing grapes from those farmers.
While we are all winemakers, the title of Wine Maker for Phantom Rivers belongs to John Thunen, PhD. John had an extensive career in the aerospace industry during which time he stayed “grounded” by making wine. During the past 30 years, John has honed his skills as an exceptional winemaker in much the same way he did as a Physicist, using scientific method coupled with natural artistic ability. For years John led a team of scientists, now he leads our team of winemakers.
Steve Mathis is the current president of Phantom Rivers and is also responsible for marketing. Linda Thunen is our secretary and treasurer, and compliance officer. Gary Smith is our assistant winemaker, Diana Smith is in charge of our website and merchandise, Susan Mathis is our promotional marketing manager, and John and Kerri Klacking are our Nevada expansion team.
![]() Steve & Sue Mathis |
John & Kerri Klacking |
![]() Gary & Diana Smith |
![]() John & Linda Thunen |

Now Open!
Please come and visit our new Tasting Room in the Village of Arroyo Grande.
211 E. Branch Street
Arroyo Grande, CA
805-481-wine (9463)
Hours:
Sun, Mon, & Thur 12:00-5:00
Fri 12:00-7:00 & Sat 11:00-7:00
Closed Tues & Wed
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March 2010 Wine Special
All Library Wines on Sale!
*2004 Cabernet Sauvignon
*2004 Syrah
*2005 Pinot Noir - Wolff Vineyard
*2006 Sauvignon Blanc
2005 Cabernet Sauvignon
2005 Paso del Sol
2006 Mourvedre
2006 Pinot Noir - Wolff Vineyard
2006 Pinot Noir - Mar Vista Vineyard
2007 Chardonnay
* Less than 2 cases available - 2 bottle limit
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