Outline is Representative of Size and Shape:
Name Details:
Identified By:  Brian Glenn
Named For:  Vandenberg Air Force Base
Date Identified:  1991
Type Site:  The Hondo Beach Site (CA-CBA-530), Vandenberg Air Force Base, Santa Barbara County, California
Point Validity: Valid type

Glenn is a professional archaeologist for a private archaeological research firm in California.  This type was named in his thesis at University of California where he conducted an analysis on the projectile points recovered from Vandenberg Air Force Base.  This type has many professional references and is considered a valid type.
Vandenberg Contracting Stem
Cluster: Coastal Contracting Stem Cluster
Description of Physical Characteristics and Flaking Pattern:
This is a medium to large triangular contracting stem point with an elliptical cross section.  There is a wide variation of blade shapes for this point.  Some examples have the tip curving in with parallel sides which other examples heavily re-sharpened examples have an incurvate or recurvate blade.  The most common blade share is excurvate.  The shoulders have as much variation as the blade.  The shoulders may vary from barbed to having an upward angle.  Much of the shape of the shoulder may depend upon the amount of re-sharpening the blade has had.  The stem is contracting with a convex to pointed base.  This point has a random flaking pattern.    
Size Measurements:

Total Length - 32 to 131 mm,  Stem Length - 10 to 25 mm,  Blade Width - 12 to 38 mm,  Stem Width at Shoulders - 8 to 25 mm,  Thickness - 8 to 11 mm
Commonly Utilized Material:
Bees Wax Chert, Obsidian
Additional Comments:

Distribution:
Distribution Comments:

This point is primarily found in the central coastal region and ranges of California.  These points tend to be concentrated in the northern regions of this distribution.  These points are found southward into San Diego County with decreasing frequency.
Age / Periods:
Date: 4,000 - 1,500 B.P.
Cultural Period: Late to Transitional Archaic
Glacial Period: Neoglacial to Roman Warm
Culture:
Age Details:
Similar Points:
Abajo, Amargosa, Bassett, Carlsbad, Cienega, Eastgate, Guadalupe, Livermore
Other points in this cluster / Related / Associated Points:
Contra Costa, Gatecliff, Gypsum, Houx, Sierra
Pictures: 

Pictures Provided By:
Joannelle Schubert
Western Artifacts
Windy City Artifacts




Vandenberg Contracting Stem Projectile Point, Vandenberg Contracting Stem Arrowhead
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References: (See Reference Page, Entry Number):

16, 23, 30