Other Websites with Detailed Information:
Name Details:
Named By: Douglas Osborne, Alan Bryan and Robert Crabtree
Named For
Date Identified:  1961
Type Site: Sheep Island Site, Benton County, Washington
  Wallula Gap
AKA: Wallula Rectangular Stem
Cluster:







Commonly Utilized Material:


Date:                   
Cultural Period:   
1,000 - 200 B.P.
Developmental to Historic
Medieval Warm to Little
Ice Age
                          

Glacial Period:

Culture:

     
      


Outline is Representative of Common Size and Shape:



Description of Physical Characteristics and Flaking Pattern:

This is a thin small triangular stemmed point with a flattened to slight elliptical cross section.  The blade may vary from excurvate, straight, incurvate, or recurvate curving in at the tip and flaring out at the shoulders.  The shoulders are most commonly barbed, but may range to horizontal.  The stem is usually rectangular with a straight stem and a straight base, but may vary from a stem that is slightly expanding and a base that ranges to slightly convex.  This point commonly has a high quality of workmanship and a random flaking pattern.    

Size Measurements:
 Total Length - 16 to 51 mm,  Stem Length - 4 to 7 mm,   Blade Width - 12 to 26 mm,  Stem Width - 3 to 7 mm,  Thickness - 3 to 5 mm
Distribution:
Distribution Comments:

This point is primarily found in the Columbia River Valley of Washington and Oregon

Similar Points:
Alkali, Columbia,  Hartstene Island, Klickitat, Rabbit Island, Rose Springs, Sauvies Island
Related / Associated Points: 
Columbia, Desert, Plateau Pentagonal
Additional Comments:

This is a variant of the Columbia Plateau point, but this type has less prominent shoulders and a narrower blade than the Columbia Plateau type (Perino, Vol 1).




Pictures:



Other points in this Cluster:
Point Validity:   Valid Type

Osbourne is an anthropologist and Professor for the Department of Anthropology at the University of Washington.  Bryan is an anthropologist and professor at the University of Alberta.  Crabtree has served in many professional roles including Director of Archeology and Archaeological, Incorporated in California and Archaeologist for the BLM in Battle Mountain, Nevada.  This type was named in a professional publication and has many professional references.  This is considered a valid type.




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Age Details:

This type is part of the Late Riverine to Historic Phase.
Pictures Provided By:
Western Artifacts
The Coinman
KirkKirk
Prehistoric Relics
Windy City Artifacts
Rod of the Rock

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References: (See Reference Page, Entry Number):

5, 23, 30
Wallula Gap Projectile Point, Wallula Gap Arrowhead