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Henry Gan nett,Chief Topographer 
Topography by W. B.Corse,T. M.Bannon.and E.M. Douglas 
Triangulation by E.M.Douglas 
Surveyed in 1894 
Revised in 1902-1903 by R.T.Evans 
E.M.Douglas, Geographer in charge 
GEOLOGIC MAP AND SECTIONS OF THE CRIPPLE CREEK DISTRICT, COLORADO 
_ , l_ 
, Scale 2500o 
Geology by F. L.Ransome and L.C.Graton 
Surveyed in 1903 
2 miles 
»kilometers 
Contour interval 50feet 
.Datum is mean sea level 
JULIUS BIEN 8.C0.LITH N V 
U.S.GEOLOGICAL SURVEY 
PROFESSIONAL PAPER NO. 54 PL 
LEGEND 
SEDIMENTARY ROCKS 
Alluvium 
Clays,sands, and gravels 
of'valleys 
Landslides 
m 
Moraines 
Composed chiefly of' 
granitic materials 
Sands,gri ls,ai id conglomera tes. 
derived chiefly from granitic-rocks 
IGNEOUS ROCKS 
Basic dikes 
(bmpris ing Ira chydoleixtc 
vogesHe. andntonchiquits 
: • 
rrachydoleriu 
Intrusive mass of Bull Clift 
Phonolite 
In trusive masses and dikes- 
m 
L atite - pi i on o ljte 
Intrusive masses and dikes 
with transitions to syenite 
Syenite 
Intrusive masses with transitions 
to latite-phonolite 
Breccia 
Breccias with tuffs and agglomerates, 
composed chiefly of phonolite and 
latite-phonolife, locally containing 
abundant fragments of granite,gneiss, 
or schist /tufts occasionally bedded 
_ 
hie 
Kil 
Intrusive sheets 
Diabase 
Dikes and smalt irregular masses 
Olivine syenite 
Intrusive mass consisting of 
o livinc s ven ite, two f a vies 
ofolivine gabbro, and dike of anorthosite 
Spring Creek granite 
Cripple Creek granite 
Pikes Peak granite 
METAM0RPHIC ROCKS 
Gneiss 
Quartz feldspar bio die gneiss 
probably derived from granite 
Mimm 
Schist 
Quartz - muscovite ■ f'ibrof its schist . 
possibly derived from sediments 
Shafts 
x 
Prospects 
Mine tunnels 
