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Archaeological Site Potential within the Dominguez-Escalante
National Conservation Area
GeCo in the Rockies September, 2014 By Seth Frame
Grand Junction Field Office
487 Sites
Uncompahgre Field Office
208 Sites
State Historical Preservation Office
1638 Sites and Isolates
Assembling the Data…
679 Archaeological Sites
Topographic Variables
Ecological Variables
Cultural Variables
Site and Survey Information
Biological Variables --------->
Straight Distance to Permanent Water
In Meters
Cost Distance to Permanent Water
In Hours
Tobler’s Hiking Function
• TIME(HOURS)TOCROSS 1 Meter or the reciprocal of Meters per Hour = 0.000166666*(EXP(3.5*(ABS(TAN(RADIANS(slope_deg))+.05))))
Topographic Variables
Ecological Variables
Cultural Variables
Site and Survey Information
Biological Variables --------->
21,845 Model points:
Created at an 1/8th mi interval.
3,793 Non-Site points: Within surveys but outside site
boundaries.
679 point selection:
Random selection of non-site points.
Factor Analysis…
Sensitivity Models…
Analytical Historic Sensitivity Model
Prehistoric Sensitivity Model
All Site Sensitivity Model
Traditional Historic Sensitivity Model
Prehistoric Sensitivity Model
Sensitivity Area
Survey Acreage (mi²)
Sites Site Density per Mile²
Average Site Acreage
High 5,134 (8)
99 12.3 10
Medium 7,942 (12)
195 15.7 3.2
Low 26,995 (42)
276 6.5 1.7
Analytical Historic Sensitivity Model
Sensitivity Area
Survey Acreage (mi²)
Sites Site Density per Mile²
Average Site Acreage
High 6,535 (10)
28 2.7 4.4
Medium 11,512 (18)
40 2.2 4.1
Low 22,124 (35)
41 1.2 2.0
All Site Sensitivity Model
Sensitivity Area
Survey Acreage (mi²)
Sites Site Density per Mile²
Average Site Acreage
High 3,840 (6)
78 13 11.4
Medium 10,944 (17)
262 15 2.8
Low 25,258 (39)
339 9 2.3
Traditional Historic Sensitivity Model
Sensitivity Area
Survey Acreage (mi²)
Sites Site Density per Mile²
Average Site Acreage
High 16,028 (25)
49 2.0 5.5
Medium 4,627 (7)
16 2.2 1.3
Low 19,692 (31)
44 1.4 2.7
Analytical Model Traditional Model
Thank you
Rand Greubel Jon Horn Matt Landt Jack Pfertsh Charlie Reed The Grand Junction and Uncompahgre BLM Field offices The rest of the staff at Alpine Archaeological Consultants
