28 RIO GRANDE COAL FIELDS OF TEXAS. [bull. 164. 
Ttfoiimfi of characters and thickness of the Eagle Pass formation. 
Feet. 
Escondido beds, composed of sandstones and clays, with many fossiliferous 
horizons, exposed for 26 miles below Eagle Pass 2, 600 
Coal series, as determined by artesian well bore, which begins in the upper- 
most bed 900 
San Miguel beds, the lower 600 feet of the artesian well bore and the thick- 
ness of sandstone exposed in the hills north of the Carter ranch, 15 miles 
above Eagle Pass (200?) 800 
Total thickness of Eagle Pass formation 4, 300 
RECONNAISSANCE FROM CLINE, UVALDE COUNTY, TO EAGLE PASS. 
The road from Cline leads across the Anacacho Mountains to the 
Beasley ranch, some 10 miles to the south; thence southward to the 
crossing of the main Eagle Pass-Uvalde road over Chacon Creek. 
From this point the journey was made along the main public road to 
Eagle Pass. 
The Anacacho formation will receive detailed consideration later. 
It suffices to say here that in the creek just south of Beasley 's house 
this limestone has dipped beneath clays which initiate the Eagle Pass 
series. 
The whole distance from the first crossing over Mula Creek, south of 
the Beasley ranch, to the third crossing over the same stream is a silt 
and gravel flat, with absolutely no bed-rock exposure. The gravel is 
chiefly flints. The vegetation consists of low, scraggly mesquite 
bushes, lignum vitre, and some cats-claw, occasional junco, and some 
tasajillo (Opuntia leptocaulis), with very little grass. The surface of 
the ground is glazed and checkered by small cracks. 
From this crossing over Mula Creek to Chacon Creek the surface is 
composed entirely of silt and gravel. At the crossing over Chacon 
Creek the main Uvalde-Eagle Pass road is reached. On the south- 
west side of the road there is an outcrop, from beneath the silt and 
gravel, of brownish sandstone, in which is an agglomerate of Ostrea 
cortex Conrad. 
Between Chacon Creek and Salado Creek the surface is covered by 
gravel and silt. About one-fourth of a mile north of Salado Creek is 
an outcrop of coarse-grained brown sandstone. The following section 
was observed on the north side of the creek at the ford: 
Section at ford on north side of Salado Creek. 
Feet. 
3. Thinly laminated, pinkish, purplish, and brown cross-bedded sands 1-2 
2. Yellow clay r 3-5 
1. Hard, yellowish sandstone, containing many fossils, which are difficult to 
free from their matrix. 
