Hidalgo Point

This triangular point features a distinctive elliptical profile and a stem that tapers inward, creating a contracting shape. Notably, the blade length is often surpassed by that of the stem, and its edge can range from gently curved to straight. The shoulders of the point exhibit a notable variability, spanning from a horizontal orientation to a sharp, upward-angled slope. A characteristic feature of this type is its long, contracting stem, which frequently exceeds the blade in length and terminates in a convex base that may display evidence of grinding. The manufacturing process involved initial percussion flaking, supplemented by pressure flaking to refine the blade's shape and achieve a sharp edge. The resulting flaking pattern is random, lacking a discernible order or orientation.

The arrowheads exhibit the following dimensional characteristics: their overall length ranges from 38 to 59 mm, with a mean length of 48 mm. The stem length varies between 15 and 38 mm, averaging 27 mm. In terms of blade dimensions, the width spans 26 to 33 mm, with an average width of 30 mm. At the neck, the stem width ranges from 15 to 27 mm, with a mean stem width of 20 mm. The thickness of the arrowheads falls within a range of 6 to 10 mm, averaging 8 mm.

This variant is believed to have originated in the heart of Mexico and has been discovered in the Mexico Valley, Tehuacan Valley, Cueva de la Nopalera, Hidalgo, and southern Tamaulipas, as well as throughout Hidalgo, Mexico. MacNeish suggests that this variant also reaches into southern Texas