2018 August, Aning Zhao, Jianhui Wang, Huaqing Chen, Jianghua Zhang, “Environmental Problems and Countermeasures for Sustainable Development in a Declining Mining City Tongchuan”, in Proceedings of the 8th International Conference on Education, Management, Information and Management Society (EMIM 2018)[1], →DOI, →ISSN, →OCLC, archived from the original on June 16, 2022, page 306:
The old city of Tongchuan are Wangyi district and Yintai District.[…] In September 29, 1984, a slope over 65,000 m3 collapsed in Yintai District, destroyed 23 houses and 50 people died.
Figure 5 e shows the salt weathering of a natural slope in Yintai District, Tongchuan City, where can be classified as valleys and ridges considering its topographic feature.
2020 November 4, “8 missing in NW China mine accident”, in huaxia, editor, Xinhua News Agency[3], archived from the original on 05 November 2020[4]:
Forty-two miners were working underground when the accident occurred around 1 p.m. in Yintai District of Tongchuan City, according to the emergency rescue team on the site. Of the miners, 34 were lifted out of the mine safely.
