Object Record

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Collection Speer Collection
Catalog Number 1999.0001.1450
Object Name Metate
'Iipay Aa Name 'ehpii
Description A rounded, slab, whole, portable grinding stone platform, also known as a metate. The material is granitic (granodiorite) with muscovite mica. It is coarse grained with large dark inclusions and sandy gray inclusions. There are large areas of exfoliating iron oxide. It has a central grinding surface that was formed by rotary grinding movements, typically with a hand-held grinding stone, called a mano.

This grinding or milling stone's ventral platform is polished for an area that is flat and 8 inches (20 cm) long, 6 inches (15.4 cm) wide and a grinding depth of 0.71 inch (1.8 cm). It appears to have recent grinding with a powder on the surface. Construction of the stone created a smooth, unshaped ovoid surface. The dorsal side of the stone is a flatter, stable base measuring the same as the maximal ventral measurements.

Length - 16.141", Width - 13.149", Height - 3.464", Weight - 36 lbs.

Provenance This artifact was found within the local San Diego County region, 1910-1950.
Date Late Prehistoric (1300-800 YA)
Material Granitic
Culture Kumeyaay / DiegueƱo
Place of Origin CA
Caption Metate, slab, granitic. Ventral horizontal view, side A.