Only two days left to enter our contest and win a free copy of John Farndon‘s Atlas of Oceans.

Remember: you must correctly identify the landmasses on the cover image and live in North America to win. Submit your answer and e-mail address as a comment to our blog (not on Facebook). The most specific answers will win, so there’s still a chance you can bump someone less descriptive out of the winner’s circle.

Contest closes on Wednesday at 6pm, EST. Good luck!