Nonstructure 186, extramural surface

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Features

Posthole (Feature 1) Top of page
General description
Round posthole.
Use history
This feature functioned as a posthole; it is unknown if it was part of a larger structure or if it aided in the construction of Structure 140.
Associated features
None.
Excavation procedure
The feature was excavated as a whole study unit in a full cut with a spoon; fill was screened with a 1/4 inch screen. 1 liter of fill was collected as a flotation sample.
Portion excavated
Whole feature was excavated.
Horizontal location
Feature is located in the north-central portion of the unit.
Vertical location
Top of feature is at Surface 1, or approximately 97.48 m; bottom of feature is at 97.06 m.
Construction
A round, basin-shaped hole was excavated from Surface 1 into Nonstructure 163 deposits. The feature was not prepared in any way. A vertical post was placed in the hole.
Remodeling/ modification
No
Thermal alteration
No
Sooting
No
Sealed
Yes. Sealed with secondary refuse from Nonstructure 154.
Preservation
Excellent
Degree of preservation
Shape in plan view
Actual: 
Inferred:  basin-shaped
Shape in cross section
Actual:  round
Inferred: 
Shape comments
Dimensions
 
Actual
Complete?
Inferred
Comments
Length
12
Yes
Measured east-west.
Width
12
Yes
Measured north-south.
Height
No
Depth
42
No
Measured from Nonstructure 186 Surface 1 to the feature bottom.
Stratigraphy
Stratum
Interpretation
Inclusions
Disturbance
Color
Texture
1
Secondary refuse from Nonstructure 154 deposits.
Sandstone.
Roots and rodents.
Dark brown.
Silty clay loam.