How to Navigate the Seas of a Flat Fantasy World

How does navigation work on a flat world? Admittedly this is not a question that comes up outside flat earth societies, at least not in the real world, but fantasy worlds aren’t always spherical. Tolkien’s Middle-earth, for example, started off as a flat world, but became round during a cataclysmic event. Before that, the Númenóreans (Aragorn’s ancestors, for those not totally up on their Tolkien lore) were held to be the greatest seafarers in the world: “mariners whose like shall never be again since the world was diminished,” as The Silmarillion puts it. The problem is, a flat earth has implications for navigation: many known methods simply wouldn’t work.

“Mithlond” by Jordy Lakiere

In a piece I wrote for Tor.com,The Dúnedain and the Deep Blue Sea: On Númenórean Navigation,” I try to puzzle out how they could have navigated the oceans of a flat world. I come up with a solution or two, within the limitations of my math abilities. (I’m sure readers who have more math than I do will be able to come up with something better.) It assumes a certain familiarity with Tolkien’s works, and it draws rather heavily on John Edward Huth’s Lost Art of Finding Our Way, which I reviewed here, not at all coincidentally, last month.

Author: Jonathan Crowe

Jonathan Crowe blogs about maps at The Map Room. His nonfiction has been published by AE, The New York Review of Science Fiction, the Ottawa Citizen and Tor.com. His sf fanzine, Ecdysis, was a two-time Aurora Award finalist.