San .findres Branch, heads in a hilly and sterile region, in north lat. 32°, and west long. 21° 15', pursues a southeastern course, 100 miles, to the junction with its principal branch, the San Gabriel. At the junction, the San Andres assumes and main tains a direction nearly due east, to its entrance into the Brazos, a distance of forty miles below the forks.
Red Fork of Brazos river rises about 10 miles south east•of the Towiash village, situated on the Wishe taw branch of Red river, in north lat. 33' 30', and west long. 22° 40', flows nearly east ninety miles, then assuming a south course, and passing through one of those immense prairies which stretch them selves in every direction, a further distance of 100 miles, enters the left bank of the Brazos.
Incoqua, the largest branch of the Brazos, has its numerous sources in the great ridge which divides the waters of the Colorado, Brazos, Stc. from those of the Rio Bravo del Norte, about north lat. 34°, and west Ion. 25°. Its general course is southeast, and entire length about 200 miles. It intersects the left bank of the Brazos 45 miles above the Taray, and 520 from the mouth of the former.
Tosohunova Branch, heads near the source of the Tempisaraco, and running an eastern course 110 miles, falls into Saline lake on the north side, 555 miles from the Gulf of Mexico.
Kcriachehunova, the only remaining branch of the Brazos deserving notice, rises in common with the two streams last mentioned, at the foot of the great ridge, and flowing eastnortheast about 100 miles, unites with Saline lake, a few miles above the To sohunova.
Very little is yet known of these streams—in deed, the same remark will apply to the entire region in which they take their rise. The delinea tion of the head waters of the Incoqua, Tosohuno va, Keriachehunova, and other water courses in this quarter, can scarcely be regarded in-any other light than as a mere sketch of the fancy—the whole of the northwestern• portion of the province consti tutes, with little exception, a Terra incognita, that may stimulate the enterprising inquirer to future discovery.
St. Bernard river, about 130 miles in length, has its source in north latitude 30°, and west longitude 19° 30', about 35 miles west of San Felipe De Aus tin. Flowing in a southeastern direction 45 miles,
it approaches within three miles of the Brazos; then curving towards the south, again inclines to the eastward, and passes about two miles west of Brazoria. After leaving the vicinity of that vil lage, the St. Bernard turns abruptly, and pursues a south course until it enters the Gulf of Mexico. The St. Bernard is 100 yards wide to the head of title, about 40 miles from its mouth. Its general course is southeast, and it drains an area of nearly 1500 square miles.
Colorado river has its principal sources among the western mountains; one of these heads in a large spring, north latitude 30°, and west longitude 23° 40', and pursues a general northeast course, about 180 miles, to its intersection with the north branch, called Pasigano river. From its junction with the Pasigano, in north latitude 31° 30', and west lon gitude 22° 10', the Colorado flows in a southeast ern direction, with occasional variations, to its dis charge into Matagorda bay, which it enters a lit tle to the southwest of old fort Matagorda, the landing place of the unfortunate La Salle, who was murdered in 1687 by one of his own men, and his colony at Matagorda broken up by a Spanish mili tary force sent from New Leon. The Colorado, although somewhat less in size than the Brazos, is navigable to the hills above the upper road.• Its banks are generally low, except among the hills, where, like those of the Brazos, they partake largely of the sublime and romantic character which marks the sides of that stream, and present to the eye of the traveller every variety of picturesque scenery, common to mountainous countries. En tire length of the Colorado, 569 miles; general course, southeast; area drained, 40,400 square miles.
Llano river, about 90 miles in length, rises in the vicinity of the silver mines of San Saba, flows north east, and joins the Colorado at the base of the Great Peak, 255 miles above Matagorda.
San Saba river, one of the principal branches of the Colorado, rises in the mountains of Piedra Pinta, in north latitude 30°, and west longitude 23°, pur suing a northeast course above 120 miles: it enters the Colorado on the right, 272 miles above its out let.