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Description

The first adobe house built in the Pleasanton Valley

From California Historical Landmarks:

Here, in 1883, James Concannon founded the Concannon Vineyard. The quality it achieved in sacramental and commercial wines helped establish Livermore Valley as one of America's select wine-growing districts. Grape cuttings from this vineyard were introduced to Mexico between 1889 and 1904 for the improvement of its commercial viticulture.

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