Some TMNT stuff really isn't for little kids.
Burnow Island is an important recurring fictional location in the IDW continuity. It is an island nation in Earth's Atlantic Ocean, previously inhabited by Leatherhead as well as an indigenous human population, which later served as the primary base of operations for General Krang after the destruction of the Utrom home planet Utrominon. The surviving Utroms were held on the island in a long-term ooze stasis, and Krang built his Technodrome to prepare for the eventual terraforming of Earth into a New Utrominon—at the expense of all life currently living on the planet.
In issue #44: Attack on Technodrome, part 4, Krang succeeded at terraforming Burnow Island and some of the surrounding waters, but failed to terraform the rest of the Earth as he was foiled, captured and transported to Planet Neutrino to answer for his many war crimes. Burnow became uninhabitable to non-Utrom life except for Tragg and Granitor who survived temporarily by hiding in caves, and the island became the home base for the Turtles' ally Professor Zayton Honeycutt, who intended to prepare the island as a peaceful refuge for the surviving civilian Utroms still in stasis. Honeycutt also gave refuge to Leatherhead from the terraformed environment until the mutant alligator could securely travel off the island.
- The island is named after IDW Publishing staff member Bobby Curnow.
- In Leatherhead, part 1, a map of Burnow Island and its surrounding waters pinpoint its location at 23.920°S 130.740°W. In the real world, this is not only not in the Atlantic Ocean between North America and Africa (where Burnow is supposed to be located), but is actually far away in the South Pacific. However, there is a real island at those coordinates: Oeno Island, part of the British Overseas Territory of Pitcairn. Additionally, Burnow Island as depicted in the map has the same shape as Oeno Island, but mirrored vertically.
- In Leatherhead, part 2, when the Utrom scientist Ma'riell and her assistant Leeshawn try to reboot the critically-damaged Professor Honeycutt's positronic brain, a console readout shows that his current location is at GPS coordinates "39.777935,-60.880051". The location on Earth at 39.777935°N 60.880051°W (where there is no real island) is indeed located in the North Atlantic Ocean and about the same distance east from New York City as real-life Bermuda is from the North Carolina coast, but significantly farther north than would be expected for the tropical climate Burnow Island was portrayed with before its terraformation, with the closest real-life land mass being the Canadian province of Nova Scotia to the north-northwest.