Here is something interesting in the Site Summary...
“In the summer of 2020, Odyssey continued testing at the San Esteban Rockshelter, opening up a new excavation area deeper into the shelter and between fallen boulders. The 2020 excavations in the “Sandal Shaft” revealed intact sedimentary and archaeological deposits that span the Holocene and may date back to ca. 15,000 years ago. Also recovered in the Sandal Shaft were six atlatl foreshafts and darts dating to ca. 6,200 cal yr B.P., potentially representing the earliest atlatl cache in the Americas. More significantly, >a hearth-like feature containing burned and unburned bird eggshells dated to ca. 15,200 cal yr B.P., suggesting potential for a pre-Clovis occupation.< Block B was expanded, revealing more intact deposits dating from the post Euro-American contact period to the Late Archaic.”
https://kgs.ku.edu/san-esteban-rockshelter
Thanks! Nice find!