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Nonstructure 248, extramural surface
About this Nonstructure
General Location
Southwest portion of the site.
Specific Location
Nonstructure 248 is about 9 m southwest of Structure 205-226.
Selection Criteria
Excavation units were used to investigate a rock-concentration surface feature.
Use
Nonstructure 248 is undisturbed native sediment, that is also a use-surface into which a stockade fence was excavated.
Abandonment
Not Applicable
Postabandonment Process
Arbitrary 201 was deposited through natural processes (wind and water) over Nonstructure 248.
Dating of Construction
The fence associated with surface Nonstructure 248 dates between A.D. 540 and 640 based on an AMS date on a burned annual in one of the postholes.
Dating of Remodeling
Not applicable.
Dating of Abandonment
Not applicable.
Dating of Midden
Midden wash above the surface contains a mix of Basketmaker through Pueblo II pottery.
Dating of Reuse
Not applicable.
Date Range
2 (A.D. 600–660)
Site-Wide
Dating
Excavation Details for Excavation Units
In order by excavation unit number.
Excavation Unit
187
Location
2-x-2 meter grid unit 1364.5N 471.5E.
Southwest quarter of the site.
Located in the northwest quarter of Block 200, approximately 11 m southwest of Structure 205.
Selection Criteria
Judgmental. This unit was selected to test an area with a high-density rock and artifact scatter as well as potential features.
Excavation Strategy
Natural strata.
Unit Ends at
Undisturbed native sediment. Excavation was terminated at the prehistoric ground surface (Nonstructure 248) at an elevation of approximately 98.20 m. Postholes 1-4 and 11-14 were dug into the prehistoric ground surface.
Study Unit(s) Identified in this Excavation Unit
Excavation Unit
218
Location
2-x-2 meter grid unit 1366.5N 471.5E.
Southeast quarter of the site.
Located in the west-central portion of Block 200, approximately 10 m southwest of Structure 205.
Selection Criteria
Judgmental. This unit was selected to test an area with a high-density scatter of rocks and artifacts.
Excavation Strategy
Natural strata.
Unit Ends at
Undisturbed native sediment. Excavation was terminated on the prehistoric ground surface (NST 248) at an elevation of approximately 98.24 m. Features 5-10, 15, and 16 were dug into the prehistoric ground surface. A 10 cm x 10 cm window was dug into the northeast corner of the unit to
Study Unit(s) Identified in this Excavation Unit
Excavation Unit
221
Location
2-x-2 meter grid unit 1368.5N 469.5E.
Southwest quarter of the site.
Located in the west-central portion of Block 200, approximately 13 m west of Structures 205 and 226.
Selection Criteria
Judgmental. This unit was selected to test an area with a probable stockade.
Excavation Strategy
Natural strata.
Unit Ends at
Undisturbed native sediment. Excavation was terminated on the prehistoric ground surface (Nonstructure 248) at an elevation of approximately 98.25 m. Postholes 19 through 24 were dug into the prehistoric ground surface.
Study Unit(s) Identified in this Excavation Unit
Excavation Unit
222
Location
2-x-2 meter grid unit 1368.5N 471.5E.
Southwest quarter of the site.
Located in the west-central portion of Block 200, approximately 11 m west of Structures 205 and 226.
Selection Criteria
Judgmental. This unit was selected to test an area with a probable stockade.
Excavation Strategy
Natural strata.
Unit Ends at
Undisturbed native sediment. Excavation was terminated on the prehistoric ground surface (Nonstructure 248) at an elevation of approximately 98.25 m. Postholes 17, 18, and 24-26 were dug into the prehistoric ground surface.
Study Unit(s) Identified in this Excavation Unit