St A ee ere ne Reena = SS. LE 
DENVER & RIO GRANDE WESTERN ROUTE. 39 
made a trip to the source of the Mississippi when he was directed to 
explore what was then known as the “Southwest.” He and his 
party left Missouri in July, 1806, and went across the country to 
the Arkansas and up that valley to the site of Pueblo. 
At the mouth 
‘than a thousand feet of coarse mate- 
rial. The Fountain formation is simi- 
lar to the Dawson as e, and much of 
it was no doubt ents deposited, 
The Lykins larsikeesh is made up of 
beds which were laid down in land- 
locked bodies of water in 
vee had an arid climate. 
e formation is made up of beds of 
endeisl e and shale between which 
there are layers of coal that repre- 
sent a ee of vegetal matter 
in swamps. When a tree dies in the 
eae it quickly decays, but when it 
great measure from decay, so that its 
carbon is stored up and accumulates 
as ¢ 
Colorado Springs is built on the 
e h 
y 
shown in Plate XXII and the cross 
section forming figure 10. 
On leaving Manitou a walk of less 
down to a smooth surface or a nearly 
perfect plain, About 50 feet above 
the granite the dove-colored Manitou 
limestone (Ordovician), over 200 feet 
t 
are co rs) 
formations, overlying the granite. 
The Cave of the Winds, in the Man- 
itou limestone, compares favorably 
with the Mammoth Cave of perrarid 
no oe so Sees 
h it in small streams. 
ast of Manitou and north of the 
railroad track there are fi ures 
7) ountain formation, which 
stretches over to the Garden of the 
Gods. The red rock up 
of the Fountain formation, the Lyons 
sandstone, and the Lykins formation— 
is about 5,000 feet thick. Near 
Manitou the Fountain beds dip G8 3 
In the Garden of the Gods they 
were tilted until they stand vertical, 
ntervening ground they 
stand at intermediate angles. (See 
fi ) Interesting erosion forms 
may be seen in the Fi 
tion in Mushroom Park and just west 
of the great masses of Lyons sand- 
stone in the Garden of the Gods. 
Some of these forms rise 200 or 250 
feet above the adjacent ground, 
