2018-01-03_PERMIT FILE - C1981010 ‎(8)‎

• Permit No: C1981010
• IBM Index Class Name: Permit File
• Doc Date: 1/3/2018
• Doc Name: Test Excavation of Site 5MF7762 by Grand River Institute BLM LSFO No. 11.2.2016
• Section_Exhibit Name: Appendix K Part K-XVI
• Media Type: D
• Archive: No

fragments, 2 pieces of utilized cobbles, and a hammerstone. Three were classified as non-
cultural chunks. The analyzed items are listed in Table A-3, Appendix A.
11.0 RADIOCARBON ANALYSES
Radiocarbon was the only ancillary specimen category sent for analysis, due to the
mixed and deflated nature of the deposits. Three charcoal samples from the site were
submitted for radiocarbon dating by International Chemical Analysis, Inc. of Miami, Florida.
The results are shown in Table 2.
Table 2. 5MF7762 conventional radiocarbon dates.
Lab Number
14C Date P
Calibrated Age
I Delta "C
I Material
Provenience
ICA/CO/C/0402
130±30
1670-1780 AD
-20.6
Charcoal
TTI D-1,
1800-1890 AD
(FS 113)
0-10cm
1900-1940 AD
ICA/CO/C/0403
1030±30
900-920 AD
-22.4
Charcoal
TTI B-1,
960-1040 AD
(FS 170)
40-50cm
1100-1120 AD
ICA/CO/C/0401
1090±30
890-1010 AD
-24.2
Charcoal
TP3, Feat.2,
(FS 242)
10-18cm
12.0 SUMMARY AND CONCLUSIONS
The depositional environment at the site is residual and aeolian; in general, the soil is a
dark brown, silty clay with poorly sorted sandstone and shale clasts. The northeastern edge of
the site was disturbed by the construction of a pull-out associated with County Road 33, where
a portion of a low saddle remains in evidence. A section of the ridge and talus slope that once
extended northwards from this point was previously removed by the road construction;
otherwise, the site surface was intact and relatively undisturbed by human activity.
As the auger tests and test pit/trench excavations proceeded it became obvious that,
although the diagnostic artifacts recovered from the site and the results of radiocarbon analysis
indicate an occupation sequence of at least several thousands of years, very little in the way of
stratigraphic integrity remains in the sub -surface deposits. It is apparent that a significant
amount of intermixing of the fill has occurred due to intermittent and recurrent episodes of
sheet wash, frost heave, bioturbation, and aeolian deposition, and even possible colluvial
deposition from the steep talus to the north. Residual weathering of the sandstone bedrock —
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