The Early Acacus was a humid period from c. 9810 – 8880 BP characterized by small groups of mobile people living in valleys and along lowland lakes.

The Late Acacus (c. 8870 – 7400 BP) was a dry period characterized by more sedentary people in larger groups living in valleys.

[9] UNESCO advised that "a centre should be established at Ghat or Uweynat to train the staff in charge of the protection and management of the property and to host a museum which is expected to play an important [role] in terms of awareness raising.

"[10] UNESCO State of Conservation (SOC) reports from 2011, 2012 and 2013 show that at least ten of the rock-art sites have been the object of deliberate and considerable destruction since at least April 2009.

[10] In May 2013 UNESCO undertook a technical mission to assess the state of conservation the Tadrart Acacus site and to "build-up a strategic plan to enforce the protection and management of this unique cultural and natural context.

[13] On April 20, 2014, the French special correspondent Jacques-Marie Bourget [fr] was informed by a local journalist from Ghat, Libya, Aziz Al-Hachi, that the UNESCO Rock-Art World Heritage Site of Tadrart Acacus was being destroyed with sledgehammers and scrub brushes.

[16] The Tadrart Acacus have a large variation of landscapes, from different-coloured dunes to arches, gorges, isolated rocks and deep wadis (ravines).