After the Pueblo Revolt of 1680, which violently forced the Spanish out of Nuevo México, the Spanish Crown decided not to abandon the province altogether but instead maintained a channel to the province so as not to completely abandon their subjects remaining there. The Viceroyalty organized a system, the so-called "conducta", to supply the missions, presidios, and northern ranchos. The "conducta" consisted of wagon caravans that departed every three years from Mexico City to Santa Fe along the Camino Real de Tierra Adentro. The trip required a long and difficult journey of six months, including 2–3 weeks of rest along the way.