Being familiar with the area, Dong elected to begin their search for fossils at a construction site for a planned natural gas facility which had excavated the top of a nearby hill, and after entering the site he and his colleagues discovered an unexpected treasure trove of fossils.
The location chosen for fossil hunting was a construction site for a natural gas facility that had already begun excavation on a hilltop. Dong and his colleagues found a large amount of fossils in this unexpected location.