a Ss 
COLORADO DESERT 
SEEN TION 
THE COLORADO RIVER ALONG THE CHANNEL OF NEW RIVER TO THE VALLEY OF THE ANCIENT LAKE 
showing the probable elevation. of the banks of the stream . 
COLORADO RIVER 
SECTIONS 12,13 &14.PLATE VII. 
SONORA DESERT 
Upper Plain , Gravel , Pebbles and Sand . 
Tide Level | E 
de 
: 
| 
02/7017۳011 07 
Waterline 
( Granite ) 
c 
( Probably Ternary ) 
Sirata containing ( 
Point of Rocks. 
ee ido 
IVER 
LORE OF SPW RI 
ER هی چم مت‎ re TM MM O E DN RS TREE SONNERIE 
$ 
E 
$ 
SECTION 
or T ۱ 
1 > 2 | 3 t Den 
COLORADO DESERT 
on à line extending northeast from the waterline on the point of rocks 
showing the probable depression of the valley of the 
ANCIENT LAKE 
Horizontal Scale, 2 miles to 1 inch . Vertical Scale , 1000 feet to. 1 inch . DESERT RANGES 
* i) 
Er (t | 
N . M 
3 
3 
Level of the Surface or the Ancient Lake and probably fide- Level > Plain. of pebbles and Sand, A 
A ات ی‎ O E GOG S E MEA E A A a UC 一 一 一 一 一 一 人 
p. x ute A id 
یت‎ E Surface of : 1 Pas x i a E n O ^T 
Se ee eae > Dese; ord tor! the Ancient Lake . S Ao E ae - 
و ره‎ a E C NE T 
T. CARE nes 8 £0 Vio 09 Ad pnr iu Sie Ms per ria EF 
SHC TION 
from North to South 
SHOWING THE TERRACES AND SAND HILLS BETWEEN COOKS WELL, AND THECOLORADO RIVER 
M 
3 
: E 
Sand Hills ES 
Y "b. > 
Upper Plain ( Gravel and Sand ) m. "zu ne m S 
b. and Terrace 
ds, 
near the rıver 
69 3. 8073 A 
NEW RIVER 
Cotton Wood 
at 24 Er ۹ 
U. 8 . PACIFIC RAIL ROAD EXPLORATIONS & SURVEYS. 
WAR DEPARTMENT 
zw VY fv del NT اه‎ * E p. UN an 
SEC TIONS or rue COLORADO DESERT. 
EXPLORED BY 
LIEUT. R. S. WILLIAMSON CORPS TOP: ENG*s 
in 1853. 
Prepared in the Otfice of Pacific Rail Road Exploration and Survey. 
WAR DEPARTMENT. 
WILLIAM P. BLAKE. 
OPI E SISSE N PS Ne E E A Be nee Re SE ENS RO ENIM تساه‎ 2 
re — 
