United States · California

Bedrock Wine Co.

Bedrock Wine Co. is a Sonoma-based producer founded by Morgan Twain-Peterson MW in 2007, focused almost entirely on old-vine Zinfandel, mixed heritage field blends, and Rhône varieties from California's most historic vineyards. Twain-Peterson, son of Ravenswood founder Joel Peterson, is a leading authority on California's pre-Prohibition wine heritage and has been instrumental in documenting and preserving old-vine parcels across Sonoma, Napa, and the Sierra Foothills. The flagship Bedrock Vineyard Heritage, sourced from the estate's own 1888-planted mixed black field blend in Sonoma Valley, is the crown jewel of the portfolio — a wine of extraordinary complexity and historical significance. The Pagani Ranch Heritage, from another pre-Prohibition Zinfandel and field blend site in Sonoma Valley, is equally prized. Across 492 auction lots, Bedrock averages just $38 per bottle, with a ceiling of $492 — representing extraordinary value for the quality and historical significance delivered. Critical scores typically range from 92–96 for the flagship bottlings.

Morgan Twain-Peterson MW has documented over 400 old-vine vineyard sites across California and holds advanced viticulture training, making Bedrock a scholarly as well as practical champion of pre-Prohibition vines.

Bedrock Vineyard was planted in 1888 and contains a field blend of Zinfandel, Mourvèdre, Alicante Bouschet, and over a dozen other varieties; it is one of the most historically significant vineyards in California.

492 auction lots average just $38 per bottle — among the lowest average prices for any critically acclaimed producer on this platform, offering exceptional value relative to quality.

Pagani Ranch Heritage, sourced from another pre-Prohibition Sonoma Valley field blend, earned 96 points from Wine Advocate and is considered one of California's finest old-vine Zinfandel-based wines.

Auction Lots

492

Avg Price / Bottle

$38

Top Vintage

2017

Price Range

$2 – $492

In the Glass

Bedrock Heritage blends from old-vine California sites are complex, layered, and restrained for their variety: dried blackberry, brambly raspberry, black pepper, dried herbs, and iron minerality from aged vines. Zinfandel provides the backbone but co-fermented minority varieties — Mourvèdre, Petite Sirah, Alicante — add depth and savory complexity. Alcohol is carefully managed, typically 14–14.5%, giving the wines structure and food-friendliness rare in the category.

Portfolio

Wine	Colour	Avg Price	Lots Sold	Top Vintage
Bedrock Vineyard Heritage	Red	$42	69	2017
Syrah	Red	$31	44	2014
Pagani Ranch Heritage	Red	$42	32	2018
Old Vine Zinfandel	Red	$27	30	2019
Papera Ranch Heritage	Red	$61	29	2016
Schmiedt Road Zinfandel	Red	$32	24	2019
Lorenzo's Heritage	Red	$37	23	2019
Griffins Lair Vineyard Syrah	Red	$41	21	2016
Weill a Way Vineyard Syrah	Red	$34	20	2016
Weill a Way Vineyard Exposition One Syrah	Red	$69	16	2014
Weill a Way Vineyard Mixed Blacks	Red	$29	15	2016
Pato Vineyard Heritage	Red	$31	12	2017
Wirz Vineyard Riesling	White	$30	8	2019
Chuy Chardonnay	White	$19	7	2017
Sauvignon Blanc	White	$22	6	2020
Coast to Foothills Syrah	Red	$39	6	2013
Old Hill Ranch Heritage	Red	$51	6	2021
Vineyard Under the Mountain Heritage	Red	$30	6	2015
Sherman's Gold Zinfandel	Red	$28	5	2014
Judge Family Vineyard Sauvignon Blanc	White	$21	5	2017
Saitone Ranch Vineyard Zinfandel	Red	$34	5	2022

Bedrock Wine Co. is based in the California wine region.

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