Outline is Representative of Size and Shape:
Alder Projectile Point

Name Details:
Identified By: 
Named For:  
Date Identified: 
Type Site:  Baron Gulch (24MA171) , Ruby Valley, Madison County, Montana
Point Validity: Valid type

The person who identified this type has not been located (see additional comments), but there are several professional references to this type.  This is a valid type.
Ruby Valley Lanceolate
AKA: Alder Complex
Cluster: Plano Lanceolate Cluster
Description of Physical Characteristics and Flaking Pattern:
This is a small to medium lanceolate point with an elliptical cross section.  The blade is excurvate with the tip curving in and curving back in towards the base.  The widest part of the blade is about the mid-point.  The base is straight to concave.  This point has a parallel to oblique flaking pattern.  
Size Measurements:

Commonly Utilized Material:
Additional Comments:
These points are referred to as both Alder Complex after the Alder Complex of Montana, and Ruby Valley after the site where this point was identified which dated to the Alder Complex.

At Baron Gulch these points were found in levels below Metzal (8,700 B.P Hardinger Complex) points (Gibson and Ames, 1998).

This point is similar to the James Allen and Fredrick points with similar flaking patterns.  However, Ruby Valley points tend to be smaller than other Transitional Paleo points from the region (Bousman and Vierra, 2012).

Bousman and Vierra (2012) reports Davis et al, 1988 as first naming / referencing this type.  This reference has not been able to be located yet.

Professional references are to the Ruby Valley Projectile Point and Collector references are to Alder Complex points.
Distribution:
Distribution Comments:

This point is primarily associated with the Ruby Valley in Montana and the surrounding regions.
Age / Periods:
Date: 10,000 - 9,000 B.P.
Cultural Period: Late Paleo
Glacial Period: Early Holocene
Culture:
Age Details:
Similar Points:
AllenAgate BasinBrowns Valley,  ClovisFredrickGreen River, LovellMeserve
Other points in this cluster / Related / Associated Points:
Agate BasinAngosturaBrowns ValleyGolondrina Hell GapMidlandMilnesand, Plainview
Pictures: 

Pictures Provided By:
 Ruby Valley Projectile Point, Ruby Valley Arrowhead
Alder Projectile Point, Alder Arrowhead

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References: (See Reference Page, Entry Number):

23, 50, 61