Tolkien shared a poem with a friend titled "Kortirion Among the Trees," which represented a significant location in his early mythology. This town, Kortirion, served as a model for Warwick, reflecting Tolkien's connection to the region of Warwickshire, where elms were prominent. The poem showcases his imaginative landscape, which he would later expand upon in his literary works.

The town of Kortirion is depicted as a central hub, featuring a tower in a mystical setting known as the Lonely Island. This demonstrates Tolkien's intricate world-building and how personal experiences influenced his creation of rich, compelling narratives drawn from his surroundings in England.