C14 Radiocarbon Dating - Sample - AA-13803

Charred flax grains (1127/663/R27) from a charcoal layer overlying the stones of a hearth in the centre of a late Iron Age building to the north of the broch.

Canmore ID 995

Map Number HU43NW

Site type Broch (Iron Age)(Possible), Burial Ground(S) (Period Unassigned), Midden (Period Unassigned)

Site number 32

NGR 440600 1139900

Council 360

County 29

Parish TINGWALL

Lab Analysis ID AA-13803

Material Dated charred grain (flax)

Researcher Sharples 1998

Sponsor Historic Scotland

Uncalibrated date bp +/- error 1275 bp +/-55

Uncalibrated date ad/bc +/- error ad 675 +/-55

Delta -27.1

Completed by National Science Foundation Radiocarbon Facility University of Arizona, USA

Calibration program used OxCal 3.10