In situ mortar, part of Feature 21 (large trapezoidal stone surrounded by smaller stones in circular formation). Potentially secondary use as part of floor feature, or else primary use as part of work station. Smaller rocks near it, as well as hardpacked clay floor abutting it on sides not abutting Feature 21. Elevation 2139.063, 1.85 m from the NE baulk, 1.45 m from the SE edge. Interior depression is roughly 8 cm in diameter. Mortar left in situ after 2011 season, not weighed.
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