The Great Divide (novel)

The Great Divide is a historical novel by the Canadian writer Alan Sullivan, which was first published in 1935. It was a breakthrough work for Sullivan, and was very well received by critics. It depicts the construction of the Canadian Pacific Railway in the nineteenth century.

In 1937 the novel was adapted into a British film The Great Barrier, directed by Milton Rosmer and Geoffrey Barkas at the Lime Grove Studios in London. A number of changes were made from the novel.