Mercer Wine Estates
Winery Prosser, WA
In 1972 Don and Linda Mercer planted the first Cabernet Sauvignon in the Horse Heaven Hills on Walter Clore's advice. Taste that Cabernet at the Prosser room on Lee Road, open Wednesday through Sunday; groups of six or more need a reservation.
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- Article Prosser, Washington by EWS Staff
Data last verified: October 10, 2026
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