The Post Pattern refers to a Paleo-Indian archaeological culture of artifacts found in northwest California dating between 9,000-13,000 years ago. Excavation sites are around Clear Lake and Borax Lake. The Post Pattern is a local manifestation of the Western Pluvial Lakes Tradition.
It is believed that Post Pattern peoples were a pre-Hokan group. The entrance of peoples speaking (hypothetical) Hokan languages dates from about 6,000-8,000 years ago in what is known as the Lower Archaic Period. The Post Pattern is associated with the Yuki–Wappo family.
The pattern is named after Chester C. Post who in 1938 introduced it to the archaeological world.
Post pattern
References
Post Pattern Wikipedia(Text) CC BY-SA