Highest natural arch

The highest natural arch is Artux Natural Stone Arch (China), measuring 391.004 m (1282 ft 9.86 in) in height, located in Artux Tianmen Scenic Area, Artux, Kizilsu Kirghiz Autonomous Prefecture, Xinjiang Uygur Autonomous Region, China, as verified on 15 August 2026

Artux Tianmen (Shipton’s Arch) is a natural rock‑arch composed of dark‑grey or grey‑yellow conglomerate, a special form of yardang landform. Its formation results from long‑term geological processes. First, fluvial sedimentation created thick conglomerate strata. Later, crustal uplift raised the rock layers. Under the extremely arid, low‑rainfall climate of Xinjiang, the weakly‑cemented conglomerate was continuously eroded and hollowed‑out along structural fractures by strong wind abrasion, eventually forming the huge ∩‑shaped arch we see today.