Aroused by a letter from Viceroy Bucareli, Rivera hastened the establishment of the eighth Mission. A place was found near the Guadalupe River, where the Indians named _Tares_ had four _rancherias_, and which they called _Thamien_. Here Padre Tomás de la Peña planted the cross, erected an _enramada_, or brush shelter, and on January 12, 1777, said mass, dedicating the new Mission to the Virgin, Santa Clara, one of the early converts of Francis of Assisi. On February 3, 1777, the new governor of Alta California, Felipe de Neve, arrived at Monterey and superseded Rivera. He quickly established the pueblo of San José, and, a year or two later, Los Angeles, the latter under the long title of the pueblo of "Nuestra Señora, Reina de los Angeles,"--Our Lady, Queen of the Angels. In the meantime, contrary to the advice and experience of the padres, the new Viceroy, Croix, determined to establish two Missions on the Colorado River, near the site of the present city of Yuma, and conduct them not as Missions with the Fathers exercising control over the Indians, but as towns in which the Indians would be under no temporal restraint. The attempt was unfortunate. The Indians fell upon the Spaniards and priests, settlers, soldiers, and Governor Rivera himself perished in the terrific attack. Forty-six men met an awful fate, and the women were left to a slavery more frightful than death. This was the last attempt made by the Spaniards to missionize the Yumas. With these sad events in mind the Fathers founded San Buenaventura on March 31, 1782. Serra himself preached the dedicatory sermon. The Indians came from their picturesque conical huts of tule and straw, to watch the raising of the cross, and the gathering at this dedication was larger than at any previous ceremony in California; more than seventy Spaniards with their families, together with large numbers of Indians, being there assembled. The next month, the _presidio_ of Santa Barbara was established. In the end of 1783, Serra visited all the southern Missions to administer confirmation to the neophytes, and in January, 1784, he returned to San Carlos at Monterey.