Rancho Guenoc
Mexican land grant in California

Rancho Guenoc (/ˈranʧo ɣeˈnok/ RAN-cho GWE-nok) was a 21,220-acre (33 sq mi) Mexican land grant in present-day Lake County, California given in 1845 by Governor Pio Pico to George Rock. Rancho Guenoc was one of three land grants (along with Rancho Lupyomi and Rancho Collayomi) in Lake County. Lake County was formed in 1861 of land taken mainly from Napa County and the northwest portion taken from Mendocino County.
Rancho Guenoc encompassed essentially all of Coyote Valley including Guenoc, stretching from the range of low mountains just north of Middletown to what is now the southern end of Spruce Grove Road, and from the most westerly curve of Putah Creek eastward and dipping south to encompass what became the Guenoc winery and vineyards.
History
Rancho Guenoc was six square league land grant encompassing essentially all of Coyote Valley. George Rock (also known as George Roche and probably George La Roche) was born about 1785 in Canada and died after 1850. He lived at Guenoc from about 1848, as agent for Jacob P. Leese. In 1850 Rock built a log cabin in the area where the Stone House is now.
George Rock by deed dated 13 Jan 1847 and witnessed by Richard Fowler and Andrew Hoppener, sold Rancho Guenoc to Jacob P. Leese (1809-1892). Leese was a trader from Ohio who had married María Rosalia Vallejo, sister of General Vallejo, and was the owner of the adjacent Rancho Collayomi.
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This entry incorporates text from “Rancho Guenoc” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.