Across the Plains (1892) is the middle section of Robert Louis Stevenson's three-part travel memoir which began with The Amateur Emigrant and ended with The Silverado Squatters.

The book contains 12 chapters, each a story or essay unto itself. The title chapter is the longest, and is dividied into 7 subsections. It describes Stevenson's arrival at New York as an immigrant, along with hundreds of other Europeans, and his train journey from New York to San Francisco in an immigrant train. Stevenson describes the train as having three sections: one for women and children, one for men, and one for Chinese. He notes that while the Europeans looked down on the Chinese for being dirty, in fact the Chinese carriages were the freshest and their passengers the cleanest.

Robert Louis Balfour Stevenson (13 November 1850 – 3 December 1894) was a Scottish novelist, poet, essayist, and travel writer. His most famous works are Treasure Island, Kidnapped, and Strange Case of Dr Jekyll and Mr Hyde.

A literary celebrity during his lifetime, Stevenson now ranks among the 26 most translated authors in the world. His works have been admired by many other writers, including Jorge Luis Borges, Bertolt Brecht, Marcel Proust, Arthur Conan Doyle, Henry James, Cesare Pavese, Ernest Hemingway, Rudyard Kipling, Jack London, Vladimir Nabokov, J. M. Barrie, and G. K. Chesterton, who said of him that he "seemed to pick the right word up on the point of his pen, like a man playing spillikins."