Arrowhead type

Columbia Plateau Point

Columbia Plateau500 - 200 B.P.Classic to Historic

17 reference photos

Key facts

Age
500 - 200 B.P.
Cultural period
Classic to Historic
Culture
Columbia Plateau Culture
Size
Small to Medium
Shape
Expanding Stem to Straight Stem to Basal Notch
Glacial period
Little Ice Age

More from the Preclassic and Classic, Historic periods

Description

This triangular point exhibits a distinctive morphology, characterized by a stem that broadens towards the base, although occasional specimens may display a straight stem. The cross-sectional profile is compressed, lending a flattened appearance to the point. The blade edge is generally straight, yet may exhibit subtle variations, ranging from a slight outward curve to a gentle inward curvature. The shoulders are marked by pronounced barbs, terminating in sharp or pointed tips. The basal edge is variable, spanning a range from straight to gently convex. The flaking pattern observed on this point is random, lacking a discernible order or sequence.

Size

The arrowhead's dimensions are as follows: it measures between 17 and 57 mm in overall length, with a stem length ranging from 4 to 6 mm. The blade's width spans 10 to 19 mm, while the neck width varies between 3 and 6 mm. The basal width is recorded at 5 to 8 mm, and the thickness of the arrowhead falls within the range of 3 to 6 mm.

Distribution

This type is mainly located in the southern areas of the Columbia Plateau, but can also occur with less regularity in the central to northern parts of the Columbia Plateau

Mainly found in

Additional information

More information needed.

Identified by

Named by
Douglas Osborne
Year
1952
Type site
The Sheep Island site, Chief Joseph Reservoir, Washington

Similar types

Types that are easy to confuse with the Columbia Plateau point.

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