ALG-128,129. Stargate Arch is a double arch located on Tin-Aboteka locality on the vast Tassili National Park (Tassili means Plateau in Tamahaq), wilaya of Illizi, Algeria. The largest of the two openings has a measured span of 8.0 meters and a probable height of 15 meters. The second opening has a measured span of 4.5 meters. Author rating ♥♥♥♥