Outline is Representative of Size and Shape:

Name Details:
Identified By:  Ripley P. Bullen and Edward M. Dolan
Named For:  Alachua County, Florida
Date Identified:  1959
Type Site:  The Johnson Lake Site, Marion County, Florida
Point Validity: Valid type

Bullen was a distinguished Anthropologist and Curator Emeritus of the Florida Museum of Natural History.  He was dedicated to identifying and typing projectile points from Florida. Dolan is a respected Anthropologist and professor at Florida Universities who excavated many important sites in Florida including the Johnson Lake Site.  This point was named in a professional publication and is professionally a widely recognized type.  This is a valid type.
Alachua Stemmed
AKA: Florida Archaic Stemmed
Cluster: Archaic Stemmed Cluster
Description of Physical Characteristics and Flaking Pattern:
This is a thick broad medium to large (2 to 4.5 inches) triangular stemmed point with an elliptical cross section.  The blade ranges from straight to excurvate.  The shoulders are usually broad and horizontal, but may have a slight upwards angle.  The junction of the shoulder and the stem is rounded.  The stem is straight to slightly contracting.  The base is primarily straight. But may vary from slightly convex to slightly concave.  This point has a random flaking pattern formed by percussion flaking and pressure flaking along the edges.
Size Measurements:

Total Length - 40 to102 mm (average 50 to 65 mm),  Stem Length - 10 to 18 mm  Blade Width - 30 to 60 mm (average 40 to 45 mm),  Stem Width - 15 to 25 mm,  Thickness - 5 to 13 mm
Commonly Utilized Material:
Additional Comments:

This type was originally named the Florida Archaic Stemmed type.  Bullen identified four subtypes for this point which included; Alachua, Levy, Marion, and Putman (Farr, 2006).  The earliest of these subtypes has been identified as the Putman subtype which has a contracting stem with a convex base.  The remaining three points appear to have the same age and have been identified as variants of the same type which have been subdivided based on stem variations (Granger and Granger, 2013).
Distribution:
Distribution Comments:

This point is primarily found in Northern Florida and into Southwestern Georgia and Southeastern Alabama,  It has not been determined how far that these points extend into central to southern Florida
Age / Periods:
Date: 6,000 - 3,500 B.P.
Cultural Period: Middle to Late Archaic
Glacial Period: Middle Holocene to Neoglacial
Culture:
Age Details:
Similar Points:
AbbeyCypress CreekHardee BeveledKirk Stemmed, LevyMarionNewnan,  Putn amSix Mile Creek
Other points in this cluster / Related / Associated Points:
Arredondo,  HamiltonKirk StemmedKirk SerratedLevyMarionPutnamSumterThonotosassa
Pictures: 

Pictures Provided By:
Steven Smith
Lucas Coon
Puget Sound Knappers (Richard (Mike) Steele)
Charles Smith
Jeremy Akins
Bill M.
Skip Hutchinson
The Coinman
River Relics
 Alachua Projectile Point, Alachua Arrowhead
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References: (See Reference Page, Entry Number):

23, 30, 58, 59, 167, W18