This is a medium to large triangular point with a thin elliptical cross section. The blade is primarily straight but may range to excurvate. This point has parallel notches lower on the blade that enter the blade horizontally, but may vary to having a diagonal placement. The notches are generally U-shaped. The shoulders are horizontal and usually the same width as the blade which forma an expanded stem. The basal edge (ears) are usually contracting. The base is concave and commonly has basal thinning, but basal grinding may be light when present. This point usually has a random flaking pattern, but parallel oblique flaking is sometimes seen.
This point is primarily associated with the Karlo Site in Lassen County, California.,
Riddle was a pioneering archaeologist who served as the head of the California State Indian Museum before continuing on to serve as archaeologist for the California Department of Forestry. This type was named in a professional publication, but has never been identified as a unique type since that time. It is felt that this type represents the Northern Side Notch point. This is considered an AKA type.
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