[Rockhounds] Clovis range predates and postdates Younger Dryas Boundary

[Paul]

Clovis people: Narrow window of tool-making
Tools made by some of North America's earliest
  inhabitants were made only during a 300-year period
Texas A&M University, PhysOrg, October 23, 2020
https://www.sciencedaily.com/releases/2020/10/201023123104.htm

Clovis range is ~13,050 to 12,750 cal yr B.P. - Figure 2
of below paper.

The Open Access paper is:

Michael R. Waters, Thomas W. Stafford, David L.
Carlson. The age of Clovis—13,050 to 12,750 cal yr
B.P.. Science Advances, 2020; 6 (43): eaaz0455
https://advances.sciencemag.org/content/6/43/eaaz0455

Yours,

Paul H.