La Prele Mammoth Site

The La Prele Creek is a tributary of the North Platte lying about 1.6 kilometers from the confluence.

The alluvial terrace dates from 20,000 to 8000 CYBP (calendar years before present) and Early Paleoindian occupation has only been found in one layer.

[1] The site area was at least 4500 square meters and had a "large campsite containing multiple concentrations of artifacts likely representing several residential features".

Test pits determined the occupation are was at least 500 square meters and in the process found a distal portion of a Clovis projectile point[6][7][8] After a year hiatus work resumed in 2019 and again in 2021.

Auger testing and an additional pit in 2022 again expanded the occupation area to 650 square meters.

[11] The most recent excavators determined a date of 11,066 ± 61 CYBP for an original mammoth bone sample.