Rancho Cañada de Pogolimi (also called "Cañada de Pogolome" and "Cañada de Pogolomi") was a 8,781.81-acre (35.5387 km2) Mexican land grant in present-day Sonoma County, California given in 1844 by Governor Manuel Micheltorena to María Antonia Cazares, widow of James Dawson. The grant encompasses present-day Bloomfield.
At the direction of Governor José Figueroa in 1835, Mariano Guadalupe Vallejo began construction of the Presidio of Sonoma to counter the Russian presence at Fort Ross. To extend the settlements in the direction of Fort Ross, Vallejo sent three men, Edward McIntosh, James Black (1810–1870), and James Dawson, in that direction. These three men came to California as sailors with Captain John B.R. Cooper, brother-in-law of General Vallejo. Black settled upon what is now known as Rancho Cañada de Jonive, while Dawson and McIntosh settled upon Rancho Estero Americano. They formed a partnership to build a saw-mill on Salmon Creek, near the town of Freestone. The Russian-American Company left Fort Ross and sold it to John Sutter in 1841. The mill on Rancho Cañada de Jonive operated until 1849, when they sold all the lumber they had and left for the gold mines.
McIntosh and Dawson agreed to make application jointly to the Mexican government for the two square league grant known as the Rancho Estero Americano, to confirm the title given them by General Vallejo. McIntosh went the capital in Monterey to get the necessary papers in 1839. However at that time, the Mexican authorities did not like making grants to multiple owners. When McIntosh returned, Dawson on examining the papers, found that they were made out only in the name of McIntosh. Tradition has it that when Dawson made this discovery, he sawed the house, in which McIntosh and Dawson had been living, in two parts, and removed his half to what would become Dawson's Rancho Cañada de Pogolimi grant. In June 1840, James Dawson married 14-year-old María Antonia Cazares (also spelled Caceres and Caseres), born the daughter of a Spanish sergeant of dragoons in 1826. Dawson continued to reside on his rancho with his wife until his death in October 1843. The Rancho Cañada de Pogolimi grant was made to his widow, María Antonia Cazares (1826–1880) in February 1844.