About Cimarossa Wines
Dr. Dino Dina, an Italian-born vaccine researcher, bought the Howell Mountain property in 1997 with his wife, Dr. Cornelia, a pediatric infectious-disease physician, when the land was still used for grazing. It's now a 60-acre estate with 15 planted acres split across ten distinct blocks between 1,600 and 2,100 feet, on soils ranging from white volcanic ash to a lava cap to deep red loam, with terraced vines interplanted alongside olive groves.
Nearly the whole vineyard is planted to Cabernet Sauvignon, aside from small plantings of Nebbiolo and Malvasia added in 2019. Mia Klein has made the wine since 2009, following early vintages from 2003 produced at O'Shaughnessy Winery. Production has grown from roughly 300 cases to about 1,200 today, sold mainly through a private allocation list that occasionally includes the rare Il Circolo bottling.
Nearly the entire vineyard is planted to Cabernet Sauvignon, save for small plantings of Nebbiolo and a few rows of Malvasia added in 2019.
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Ten distinct blocksThe 15 planted acres are divided into ten unique blocks, with soils ranging from white volcanic ash to a lava cap to deep red loam.
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Winemaker since 2009Mia Klein has made Cimarossa's wines since 2009; the earliest vintages, from 2003, were produced at O'Shaughnessy Winery.
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Wine and olive oilAlongside Cabernet Sauvignon, the estate's terraced groves produce an olive oil sold through the same online store.
"A physician-owned Howell Mountain estate built almost entirely on Cabernet Sauvignon and sold through a tiered allocation list."
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Featured Wines
CABERNET SAUVIGNON
Rive di Cimarossa
2021 · Howell Mountain
The estate's flagship Cabernet Sauvignon bottling from the Howell Mountain vineyard.
CABERNET SAUVIGNON
Riva di Ponente
NV · Howell Mountain
A vineyard-block Cabernet Sauvignon named for the estate's Ponente rows.
CABERNET SAUVIGNON
Il Circolo
NV · Howell Mountain
An ultra-limited bottling made only in select vintages (2014, 2016, 2017), offered to allocation-club members as an optional spring shipment priced $350-$525 per bottle depending on tier.
Current releases and allocation pricing as listed at cimarossa.com, July 2026; wines are sold almost entirely through the estate's private allocation list.
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Allocation Access
The estate is private with no regular public tours; visits are arranged by appointment for allocation-list members, who can also buy the estate's olive oil.
By appointment
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