Projectile point · Paleoindian
Hi-Lo
9500–8500 BCE, Plano
Hi-Lo was named by Fitting in 1963 from the Hi-Lo site in Ionia County, Michigan, and is the common late Paleoindian point of Michigan, Ontario, Ohio and Indiana. It is broadly contemporary with Dalton in the Southeast and with Plano forms on the Plains. Most examples are heavily reworked, and collectors value the few long, unresharpened points.
| Object | Projectile point |
|---|---|
| Dates | 9500–8500 BCE |
| Period | Paleoindian |
| Cultures | Plano |
| Regions | North America — Eastern Woodlands |
Diagnostic traits
Thick, narrow lanceolate with a slight waist or shallow side notches just above a concave base, heavy grinding of the base and lower edges, and a blade that is often steeply resharpened to a stubby, asymmetric outline.
Identification
Hi-Lo is thicker than Holcombe and has a waist or weak notches that Holcombe lacks. Dalton has a serrated, beveled blade and flaring ears; Plainview is thinner and lacks the waist. Late Archaic lanceolates are unground at the base.
Reproductions and fakes
Little reproduced. Look for basal grinding, a lustrous patina on Upper Mercer or Bayport chert, and resharpening that narrows the blade while leaving the ground haft width intact.
Elsewhere
- Wikidata: Q138718063
Cite this article
Stratum Study. "Hi-Lo" (Artifact type). Stratum Study pack 2026.09, as of 2026-09-21. https://stratum.black/study/types/hi-lo. Accessed 2026-09-21.
@misc{stratum-hi-lo,
title = {Hi-Lo},
author = {{Stratum Study}},
howpublished = {\url{https://stratum.black/study/types/hi-lo}},
year = {2026},
note = {Artifact type article, Stratum Study pack 2026.09, as of 2026-09-21; sources: stratum, wikidata. Accessed 2026-09-21.}
} Citations carry the pack version and the article's as-of date so they resolve to the same text later. The facts themselves belong to the sources listed below; cite those for the science.