It has a hot desert climate with short, very warm winters but long, extremely hot summers.
Average annual rainfall is one of the lowest found on the planet with only 8 mm and many decades may easily pass without seeing any rainfall at all.
This are artifacts from one of the common MSA surface scatters at Ubari (Libya).
From Left to Right: elongated unifacial MSA point, fine "Mousterian" point with facetted base presumably Levallois, one unifacial scraper also shown in Fig.2, two small bifacial foliates not larger than 6,5 cm, last but not least: a bifacial bi-pointe, also seen in Fig.3).
Ubari is an oasis is situated between the Messak Sattafat plateau and Idhan Ubari erg sand dunes and lakes.
Today Ubari is located in one of the driest areas in the world.
During the lower “intermediate” levels, most frequently a Levallois technique aimed at the production of elongated triangular blanks (Levallois points), often with thinning of the proximal end and by the removal of several small elongated flakes, was employed (Umm el-Tlel point type).In this sense our artifact could be an early document for this technique. The Artifact comes from the The department Cher which is part of the current administrative region of Centre-Val de Loire.It is surrounded by the departments of Indre, Loir-et-Cher, Loiret, Nièvre, Allier, and Creuse.Although thinning of artifacts in Europe is usually assigned to the Mousterian of the last Glacial, especially to the variants of the Quina technique, and to the KMG-groups of central Europe, systematic thinning appears earlier.In S/W-France the site of Bouheben (layer 2; Late Acheulian) is dated by geostratigraphic arguments to MIS 6.Thinning is described as a concept of the Acheulo-Yabroudian (400-200 k.a.) The scraper assemblage from Zuttiyeh has been described and analyzed in some detail.