WSP07960

• File Number: 8221.110.J
• Description: Juniper-Cross Mountain Project
• State: CO
• Basin: Yampa/White
• Date: 9/3/1979
• Title: The Geological & Paleontological Environment of the Juniper-Cross Mountain Project Area and Plan for the Preservation of Paleontological & Unique Geological Resources in the Project Area
• Water Supply Pro - Doc Type: Report/Study

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ERA PERIOD ROCK UNIT
e: Shale and Dolomite (unnamed)
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~ I nteJl.bedded .6a.ndy a.nd eheM:y do.tomUe, .6 ha.l.e,
e:
0 c1.a.Y.6tone, a.nd .6a.nd.6tone; vcvUeo.toJted Jted, gJteen,
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cu a.nd gJta.y; paJt.tty eaJLbona.eeofL6 a.nd hema..ti.tie;
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e: poolLty expo.6 ed a.nd eommonly nOJulU> .6wale; a.bout
e:cu",
",.o~ 100 to 145 neet thiek.
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0. >,~
c.",>
~Eo
III "0 Madison Limestone and older rocks
Ill.... ...
~cuo
U IIlCU Ught-glUly mi.cJt.OcJt.Y.6talUne pa.Jtt.ly bJteec..i.a.ted
' .... Ill.... ...
0 ~ 0 eheM:y do.tomUe; nOJulU> th.i.ek mlL6.6ive Wnn.6 a.nd
N ::E3.....
- 0 CU"O .tedge6; a.bout 15 to 25 neet a.bove blL6e L\ thin
..., ....e:
-' '" zone on n.e.at do.tomUe-pebb.te eong.tom~e wh.i.eh
< ...
c.. cu L\ undeJl.la.i.n by thin bed.6 0 n vcvUeo.tOJted do.to-
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0' mUe, ha.ndy do.tomUe, a.nd hha.l.e; a.bout 500 neet
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~ .tki.c.k.
Lodore Formation
e: Ught-glUlY a.nd pale-gJteen gR.a.ueoMtie Mne- to
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~ eoa.Jthe-gJta..i.ned thin- to th.i.ek-bedded eong.tomeJl.-
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.0 a..ti.e ha.nd.6tone a.nd qualvtzUe; eontlUYIh a. new bed.6
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'" on Jted and gJteen hha.l.e a.nd hil..t6tone; a.bout 300
u
neet thiek. ' .
Unita Mountain Group
z: InteJl.bedded Jted nine- to eoa.Jthe-gJta.i.ned eong.to-
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.... meJutt.i.e pa.Jtt.ly qualvtzili.e .6a.nd.6tone a.nd Jted a.nd
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ED gJteen h ha.l.e; hema..ti.tie; typiea..Uy wea:the;u, da.Jr.k
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< Jtedd.Uh bJtOwn; .6a.nd.6tone L\ th.i.ek bedded, eom-
u
..., monly cJt.ohhbedded, a.nd nOJulU> wnnh; a.t .telL6t
cr::
c.. 500 neet expohed in CJtOh.6 Mountain Ca.nyon.

Paleontology

No r~ally major paleontological discoveries (like dinosaur skeletons)
have been made within the Juniper - Cross Mountain Project area. However.

most of the rock formations of the area are to some degree fossiliferous.

and some of these fossils are significant geologically. Furthermore.

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