Two reigns, one hill
Gaozong and Wu Zetian share a Qian County tomb built into a mountain, with national policy still against opening the chamber.
Xianyang spreads along the Guanzhong plain immediately north of Xi'an, in the same central belt between loess plateau and Qinba hills. Imperial tombs here follow mountains rather than mounds; provincial data lists Qianling among open national archaeological parks while the Qin Xianyang city park remains an approved project only.