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Name Details:
Named By: Cynthia Irwin Williams and Henry Irwin
Named For:  Type Site
Date Identified: 1966
Type Site: Magic Mountain Site, Jefferson County, Colorado
 Magic Mountain Side Notch
Cluster:









Commonly Utilized Material:


Date:                   
Cultural Period:   
5,800 - 5,300 B.P.
Middle Archaic
Middle Holocene
Archaic Mountain Traditions

Glacial Period:
Culture:
     
      


Outline is Representative of Common Size and Shape:



Description of Physical Characteristics and Flaking Pattern:

This is a medium triangular point with a thick elliptical cross section.  The blade is primarily straight to excurvate.  The shoulders may vary from horizontal to having an upward angle for the side notch form, or barbed for the corner notch form.  The stem is expanding with a convex base which may give the appearance of a bulbous appearance on some examples.  Basal and hafting region grinding is present on this type.  The flaking pattern may range from random to collateral.   

Size Measurements:  Total Length - 35 to 55 mm,  Stem Length - 8 to 14 mm,  Blade Width - 17 to 25 mm,  Neck Width - 13 to 17 mm,  Stem Width - 16 to 21 mm (***based on similar Cherry Gulch point***)

Distribution:
Distribution Comments:

Primarily found in the higher altitude mountain areas of the Colorado Plateau of Colorado and into the high mountainous regions of Utah and Wyoming.

Similar Points:
Cherry Gulch, Cienega, Elko Corner Notch, Figueroa, Hawken, Lewis, Martis, Mount Albion, Pekisko, San Pedro, Samantha Dart
Related / Associated Points: 
Fourth of July Stemmed, Fourth of July Lanceolate, Cherry Gulch, Lodaiska, Mount Albion
Additional Comments:

The diagnostics difference between the Mount Albion point is lack of basal grinding.  May be distinguished from the Cherry Gulch by the lack of a serrated blade.

Benedict states that this point may have evolved from earlier mountain lanceolate points.




Pictures:

Other points in this Cluster:
Point Validity:   Valid Type

Irwin-Williams was a distinguished Anthropologist who did extensive work in Colorado and the surrounding region.  The studied, identified, and named the Picosa Archaic Culture.  Irwin as an anthropologist and served as a field archaeologist for the Peabody Museum at Harvard University.  This type was named in a professional publication and has many professional references.  This is considered a valid type.




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References: (See Reference Page, Entry Number):

35
Magic Mountain Projectile Point, Magic Mountain Arrowhead