Return to Main View
pg 007: Reconnaissance in the Rio Grande coal fields of Texas Publication 5040853

7

ILLUSTRATIONS.

Page. PLATE I. Map of the region of the Eagle Pass and Eocene coal fields of the Middle Rio Grande in Texas 13 II. The Rio Grande, from Mexican side of the river opposite Eagle Pass. 26 III. A, Cretaceous-Eocene contact on the Frio River, 2 miles below Engelmann's ranch, southern Uvalde County; B, Basal Eocene bluff on the Frio River 50 IV. A, Lower Eocene sandstone on the Frio River; B, Artesian well, Dinman's place, near Carrizo Springs 52 V. Bluff of Rio Grande at Eagle Pass, showing the upper plain (Uvalde formation level) and the wide silt terrace (Columbia formation level) 54 VI. Map showing the topographic features of the San Carlos region and the localities described in this report 74 VII. View of the Vieja Mountains looking south from Chispa 76 VIII. View of the Vieja Mountains looking east from San Carlos 78 IX. View of Gettysburg Peak from San Carlos 80 X. Bracks Canyon, entrance to eastern end, San Carlos 82 XI. Columnar sections 84 FIG. 1. Map showing the general position of the Rio Grande coal fields 14 2. Section of hill on east side of Elm Creek, 1 mile above bridge, at the crossing of the Del Rio and Eagle Pass road 23 3. Section of the Eagle Pass artesian well 25 4. Section of the Anacacho Mountains, Kinney County 32 5. Weathering of the Carrizo sandstone at Chupadero ranch 53 6. Sandstone and clays above coal horizon (Santo Tomas seam) at Santo Tomas 54 7. Section of bluffs and terraces at Palafox 55 8. Generalized diagram of Rio Grande terraces 55 9. Sketch map showing coal mines and prospects near Eagle Pass 56