 Ugarte led several expeditions of overland exploration to seek out mission or "visita" sites in the region surrounding San Javier.More spectacularly, he oversaw the construction of a ship, "El Triunfo de la Cruz", from locally harvested lumber called "gueribo" found at La Sierra "La Giganta".In September 1720, Ugarte sailed his new ship from Loreto to La Paz to help found a new mission there.