More than 1,200 rescuers were deployed, assisted by thermal-imaging drones and radar detectors, according to state media.
The operation continued through the night into Sunday morning, during which time a further drop in temperature made the search even more difficult, China's Xinhua news agency reported.
The deaths have sparked public outrage on Chinese social media, with anger mainly directed at the Baiyin government and unhappiness over the lack of contingency planning.
In a press conference on Sunday, Baiyin's Mayor Zhang Xuchen said: "As the organiser of the event, we are full of guilt and remorse. We express deep condolences and sympathy to the families of the victims and the injured."
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