Leaving the Rio Grande at Roma, the company took the main road to Chihuahua, passing through Monterey, Saltillo, Buena Vista, Parras, and Mapimi and reaching Parral June 18. Cholera still followed them and here claimed another victim. Mr. Audubon had been twice attacked but had been able to resist the disease. At Parral the company left the highway and struck across the mountains to Sonora. On the western slope towns were few and far between. Ures was reached August 22 and Altar September 9. Leaving Altar they entered a desert inhabited only by Indians living on lizards and grasshoppers. At the Pima villages on the Gila they reached the line of General Kearny's march, which had become the southern emigrant route. The march through the Gila valley to the Colorado proved the most trying part of the journey. With supplies for the men exhausted, without grass for the mules, and with little water for either, the limit of endurance was almost reached. Crossing the Colorado, the company turned northward through the desert to the mountain passes and then southward to San Diego, whence they followed the trail to Los Angeles. Here Mr. Audubon decided to send the greater part of the company to San Francisco by sea, while he, with ten of the men, drove the mules through by land. Crossing the coast range the route now followed the Tulare valley and the San Joaquin River to Stockton. At San Francisco the company was reunited and from here started for a tour of the southern mines. Finding that they were already crowded and that the first fruits had been gathered, Mr. Audubon turned with his friend Layton to the northern mines. The two proceeded to Sacramento and thence to Coloma and Georgetown, where the journal suddenly stops. The trip was probably interrupted at this point and Mr. Audubon called back to San Francisco to make preparations for his return home.