Page:Mexico, Aztec, Spanish and Republican, Vol 2.djvu/31

Rh, whence it takes a south-west course and receives, at the foot of the Monte de Sal Gemme, the which springs about 1° 30' west of the  in the Cerro de la Plata; and, thus, receiving the accretions of a number of other streams, it courses onward until it is lost at the head of the Gulf of California. The whole length of the is estimated at about two hundred and fifty leagues. For about fifty leagues it is navigable by small sea going vessels; and, for about a hundred leagues higher, it may be traversed by large boats. The sea is said to ebb and flow between thirty-five and forty leagues beyond the mouth of this river. The sources of the and of the  lie very near those of the  until it unites with the Colorado; so that the waters of the Gulf of Mexico and of the Gulf of California are nearly united by these streams across our continent.

15th. The rises in the Sierra de los Mimbres, and descends to the south, through a small and mountain bound valley until it unites with the Colorado.

1. 2. in the state of Chihuahua. 3. The in the Bolson de Mapimi. 4. The on the west boundary of Coahuila. 5. The in the state of San Luis Potosi. 6. Nine small in Zacatecas. 7. The large and important and others in Jalisco. 8. in Michoacan. 9. The five large in the valley of Mexico. 10. The in the valley of Toluca. 11. A number of small ones in Oajaca. 12. The on the gulf coast or near it. 13. The in Guanajuato.