RIO GRANDE COAL FIELDS OF TEXAS.
Dumble states that '' the coal has been used by blacksmiths at the fort [Fort Inge] and found to be of good quality." 1
Going down the Nueces, the next outcrop of coal is in the east bank of the river, just above the McDaniel ranch. The following is a section through the coal seam:
Section through coal seam above the McDaniel ranch.
This exposure is in a weathered bluff, the bottom being about 20
feet above the water in the river, at the time of the inspection. As appliances for digging and obtaining good samples were not at the writer's disposal, no opinion regarding the value of the coal can be
Mr. M. C. Ott furnished Mr. Hill with the following data: "In a well
3 miles east of the Nueces River, in Uvalde County, on the road from Uvalde to Carrizo Springs, coal was struck in three places; one seam,
at a depth of 150 feet, was 5 feet thick."
The writer can not locate this well on any map, and can give no
further information concerning the coal than to suggest that it may be
the same seam exposed just below the Pulliam ranch.
Coal is reported from the following other localities north of Carrizo
Springs: There is. as already noted, an outcrop at the bridge, where the Carrizo Springs-Batesville road crosses the Nueces. There is coal at the mouth of Espantosa Slough, but nothing definite is known con cerning it. Mr. S. D. Frazier informs the writer that he struck a 7-foot seam of coal at a depth of 80 feet, in a well bored for Mr. Coleman on
Santo Tomas coal field.—
-Probably the foregoing outcrops of coal
should be included in the Santo Tomas coal field, but in order to avoid attempts at correlations or suggestions as to equivalence in age, they have been discussed separately. The Santo Tomas coal series will, therefore, be assumed to begin 11 miles below the Guajolote
Eleven miles by road, southeast of the Guajolote ranch, is an out
crop of coal or lignite. The associated rocks are micaceous sandstones and clay shales. The record of prospect drill No. 6, bored by Mr.
1 Brown Coal and Lignite, p. 188.
Chocolate-colored clays. Feet-
Coal, not clearly exposed 1 or 2 Chocolate-colored clay 3
10 or 11
Chocolate-colored clay 6 or 7
Coarse sand - 0
Chocolate-colored clay and sand 3
Chocolate-colored clays 6