A range of red sandstone hills in the Turpan Depression, Xinjiang

A hill in Miaoli County, Taiwan, known for its red soil and distinct eroded landscape

A legendary mountain in the novel 西游记 xī​yóu​jì characterized by perpetual flames; (fig.) an insurmountable obstacle

A volcano (archaic or rare usage, normally referred to as 火山 huǒ​shān)