Mariposa

History

Before Spanish arrival, the Southern Sierra Miwok lived in what is now Mariposa. In 1806, a Spanish priest traveling with early California explorer Gabriel Moraga named the area. When the expedition came upon a creek filled with thousands of yellow butterflies, they called it “Las Mariposas,” the Spanish word for butterflies. In 1847, John C. Frémont purchased a 70-square-mile land parcel known as Las Mariposas for $3,000. Formerly owned by Governor Juan Bautista Alvarado, the ranch turned profitable once Frémont discovered a five-mile quartz vein producing hundreds of pounds of placer gold monthly. Its “floating grant” status, however, sparked extensive property and mineral-rights disputes. Squatters and mining companies contested ownership until 1856, when the U.S. Supreme Court ruled in Frémont's favor. The Mariposa Estate covered 44,000 acres in the heart of the Mother Lode region, where gold pockets in quartz veins could yield between $100 and $30,000. By 1915, total output surpassed $12 million in gold. When floods and fires during the winter of 1849–1850 forced them to higher ground, they relocated near Mariposa Creek, establishing a bustling county seat by 1851. The historic courthouse, completed in 1854, still stands. During the early 1850s, tensions between local Native tribes—primarily the Southern Sierra Miwok—and white settlers peaked, prompting the Mariposa War. The conflict stemmed largely from the presence of miners and the trading operations of James Savage along the Merced River and Mariposa Creek. During World War II, the U.S. Army constructed the Mariposa Auxiliary Field (1942–1945) to train pilots; post-war, the site was redeveloped as today's Mariposa-Yosemite Airport. On July 18, 2017, the town was evacuated due to the rapidly spreading…

Geography

Mariposa is nestled at an elevation of in the rugged foothills of the Sierra Nevada. According to the United States Census Bureau, the CDP covers a total area of , with nearly all of it being land.

Race & ethnicity