"River of Fire" is a term often used to describe a natural phenomenon where lava flows from a volcano, creating a glowing, fiery appearance that resembles a river. This occurs during volcanic eruptions when molten rock, or magma, escapes from the Earth's interior and solidifies upon contact with the surface. The term can also refer to specific cultural or artistic works, such as the novel "River of Fire" by Katherine Paterson, which explores themes of resilience and hope. Additionally, it may relate to various historical events or locations associated with fire and destruction, emphasizing the power of nature.