Coombsville, Napa Valley
Summary Vineyard Data
AVA:Napa Valley (Tulocay)
Acres:64.7 planted (92 gross acres)
Varietals:Cabernet Sauvignon (26.4 acres), Merlot (20.4 acres), Cabernet Franc (9.2 acres) and Petit Verdot (8.7)
Climate Data:Region II climate classification:
• Heat summation: 2,500 to 2,800 annual degree days
• Rainfall: 23.88 inches average per year
Soils:Haire loam, Sobrante loam and Haire clay loam. Also Coombs gravely loam and Guenoc rock outcrop complex.
Blocks:13 blocks (ranging from 1.2 to 10.7 acres)
Vine Density:622 vines per acre (2.14 x 3.06 m)
1,245 vines per acre (1.07 x 3.06 m)
2,020-2,555 vines per acre (1.0 x 1.75 m)
Trellis:Vertical Shoot Positioning
Clones & Rootstocks:
CS clones: 4, 337
CS rootstocks: 110R, 3309
MR clones: 181, 314, 347
MR rootstocks: 101-14, 110R
CF clones: 214, 327
CF rootstocks: 101-14, 3309
PV Clone: 400
PV rootstocks: 101-14, 3309
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Vineyard Properties > Napa Valley > Coombsville



Cabernet Sauvignon, Cabernet Franc, Merlot and Petit Verdot

Tourmaline resides in southeastern Napa just north of Skyline Park on 92 gently-sloping acres.  Named for the birthstone of November, Tourmaline enjoys gentle ripening of fruit, often with harvests that extend into November.  Color is king for Tourmaline, with wines from the vineyard exhibiting deep ink-like hues of purple and cherry.