Machachi is the canton seat of Mejía Canton in the Pichincha province of Ecuador. Machachi is located to the south of the capital of Ecuador, …Machachi is the canton seat of Mejía Canton in the Pichincha province of Ecuador. Machachi is located to the south of the capital of Ecuador, Quito. It is a city surrounded by the volcanos Atacazo, Corazon, Rumiñahui, Illinizas Peaks, Viudita Hill, Pasochoa, and Sincholagua, and owns part of the Cotopaxi volcano, a great active volcano which measures 5,897 m in altitude. In fact, the valley owns eight volcanoes inside, one the reasons Alexander von Humboldt named the region "Avenue of Volcanoes".