The Campo de Cahuenga, near the historic Cahuenga Pass in present-day Studio City, Los Angeles, California, was an adobe ranch house on the Rancho Cahuenga where the Treaty of Cahuenga was signed between Lieutenant Colonel John C. Frémont and General Andrés Pico in 1847, ending hostilities in California between Mexico and the United States. The subsequent Treaty of Guadalupe Hidalgo of 1848, ceding California, parts of Colorado, Nevada, New Mexico, and Arizona (but not Texas since it had seceded from Mexico in 1836, declared itself a republic, and joined the union in 1845) to the United States, formally ended the Mexican-American War. From 1858 to 1861 the Campo de Cahuenga became a Butterfield Stage Station.