1877 Historical Atlas Map of Sonoma County, California is a color facsimile reprint of the original 1877 atlas documenting one of Northern California's most storied counties during a period of dynamic agricultural and commercial growth in the decades following the Gold Rush. Please note that this reprint includes the maps, city and town plats, and illustrations only — the biographical sketches, History of Sonoma County, Official Roster of County and Cities, Census Statistics, and Patrons Directory found in the original volume are not included in this edition. The atlas features a full state map, a county map, and twelve detailed farm maps covering Sonoma County's agricultural lands, alongside city, town, and village plats for communities including Santa Rosa, Petaluma, Healdsburg, Sonoma, Sebastopol, Guerneville, Cloverdale, Bodega Corners, Fulton, Geyerville, Occidental, Pine Flat, and Windsor. Among the most distinctive features of this atlas are its extensive illustrations, which provide a remarkable visual record of Sonoma County life and commerce in 1877 — including views of Christian College, City Stables of Santa Rosa, the Enterprise Block and Granger Block of Healdsburg, the Sotoyme House, the Russian River Flag, Santa Rosa Brewery, the Petaluma Argus, Pacific Methodist College, the Sonoma and Marin District Fair Grounds, and the residences and farms of prominent county families. Portraits of notable figures including General M.G. Vallejo, Cyrus Alexander, Franklin Bedwell, Harmon G. Heald, and J.B. Snyder add further historical depth to the volume. This color facsimile is an essential resource for genealogists tracing Sonoma County family histories, historians researching 19th-century Northern California land use and community development, and collectors of California and Western Americana. A rare and visually rich primary source, this reprint makes an important piece of California history accessible to researchers and collectors alike.