U. 8S. GEOLOGICAL SURVEY 
BULLETIN 845 SHEET 17 
Zaragoza 
Cerro Alto 
LZ 6767 
Texas 105 30 
I 
Scale 500,000 
linch=8 miles (approximately) 
= 10 1S 20 MILES 
Each — shown 
in the 
op ondooe map of that 
KO \ 
12] § lo 15 
Contour interval 200 feet 
20 KILOMETERS 
The distances from New Orleans, La., are shown every 
10 miles, and the crossties are drawn I mile apart 
on the ame in parentheses 
left corner is i mapped i in eg nt on the U. 8. G. 8. 
3! 
Ce * 
)) an * 
ene 
> S 
3\ 
oo” 
| 1@ 
ar} |W 
30 
EXPLANATION oe 
A Sand, gravel, etc. (valley fill and alluvium) 2,000’+ 
B Shale Colorado 300’ Upper Cretaceous 
C Limestone Washita group : 
Fredericksburg group isang 
D_ Limestone, sandstone, ete. Trinity group 900’ é eure 
E Limestone Malone 1,000’ Jurassic 
F Limestone, shale, gypsum 1,500’ Permian 
G Limestone Q—1,800’ Pennsylvanian 
H Limestone 500’ aia 
| Limestone Fusselman ———3 1,000’+ = Siluri 
? 400’ 
J Limestone Montoya 200- Cudwvician 
K Limestone El P: 1,000’ 
L. Sandstone Bliss 0-300’ Cambrian 
M i 1.500’+ 
Rhyolite porphyry Algonkian (?) 
N Quartzite Lanoria 777 1,800’ 
© Granite Post-Carboniferous 
(probably in part pre-Cambrian) 
P Porphyry, ete. (igneous intrusions) eS Post-Cretaceous 
~~~ Concealed fault & 
‘es 
o 
—— by G. B. Richardson, P. B. King, R. E. King, 
30 
C. Baker, and N. H. Darton 
106 30 
Topography: U. S. Geological Survey quadrangle maps 
WILLIAMS & HEINTZ CO.. WASH. D.C. 
