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Nonstructure 212, midden
About this Nonstructure
General Location
Southwest portion of the site.
Specific Location
Nonstructure 212 is only present in five excavation units; 1369N 468E; 1374N 467E; 1374N 469E; 1376N 471E; and 1383N 475E.
Selection Criteria
1-x-1-m units were used to investigate a midden deposit.
Use
Nonstructure 212 is a calcium-carbonate-rich midden deposit.
Abandonment
Not applicable.
Postabandonment Process
Arbitrary 201 was deposited over Nonstructure 212 though natural processes (wind and water).
Dating of Midden
Basketmaker III period A.D. 600-725 based on pottery.
Date Range
4 (A.D. 600–725)
Site-Wide Dating
Excavation Details for Excavation Units
In order by excavation unit number.
Excavation Unit
12
Location
1-x-1 meter grid unit 1369N 468E.
Southwest portion of site.
North half of Nonstructure 203 (Architectural Block 200 west midden).
Selection Criteria
Random. To sample Architectural Block 200 west midden Nonstructure 203.
Excavation Strategy
Strata subdivided into arbitrary levels. Strata were divided into 10-cm arbitrary levels when applicable.
Unit Ends at
Undisturbed native sediment. Undisturbed native sediment was encountered at an elevation of approximately 98.05 m. A test window was excavated into the southeast corner of the unit to confirm sterility; the bottom of this window was at an elevation of 97.93 m.
Study Unit(s) Identified in this Excavation Unit
Excavation Unit
53
Location
1-x-1 meter grid unit 1374N 467E.
Southwest quarter of the site.
Located in the northwest quarter of Nonstructure 203 (Architectural Block 200 west midden).
Selection Criteria
Random. To sample Architectural Block 200 west midden Nonstructure 203.
Excavation Strategy
Strata subdivided into arbitrary levels. Strata were divided into 10-cm arbitrary levels when applicable.
Unit Ends at
Undisturbed native sediment. Undisturbed native sediment was encountered at an elevation of approximately 98.24 m; however, excavation continued in the sterile stratum until an elevation of approximately 98.01 m. A 10 cm x 10 cm window was dug into the southeast corner of the unit to
Study Unit(s) Identified in this Excavation Unit
Excavation Unit
54
Location
1-x-1 meter grid unit 1374N 469E.
Southwest quarter of the site.
Located in the northwest quarter of Nonstructure 203 (Architectural Block 200 west midden).
Selection Criteria
Random. To sample Architectural Block 200 west midden Nonstructure 203.
Excavation Strategy
Strata subdivided into arbitrary levels. Strata were divided into 10-cm arbitrary levels when applicable.
Unit Ends at
Undisturbed native sediment. Excavation was terminated at an elevation of approximately 98.18 m.
Study Unit(s) Identified in this Excavation Unit
Excavation Unit
56
Location
1-x-1 meter grid unit 1376N 471E.
Southwest quarter of the site.
Located in the north-central portion of the Nonstructure 213 (Block 200 west midden).
Selection Criteria
Random. To sample Architectural Block 200 west midden Nonstructure 203.
Excavation Strategy
Strata subdivided into arbitrary levels. Strata were divided into 10-cm arbitrary levels when applicable.
Unit Ends at
Undisturbed native sediment. Excavation was terminated at an elevation of approximately 98.39 m. A window was dug into the southwest corner of the unit to confirm the sterility of the deposit; the bottom of this window was at an elevation of 98.24 m.
Study Unit(s) Identified in this Excavation Unit
Excavation Unit
223
Location
2-x-2 meter grid unit 1383N 475E.
Southwest quarter of the site.
Located in the northwest quarter of Block 200, directly northwest of Structure 228.
Selection Criteria
Judgmental. This unit was selected to test for a possible stockade northwest of Structure 228.
Excavation Strategy
Natural strata.
Unit Ends at
Undisturbed native sediment.
Study Unit(s) Identified in this Excavation Unit