Ground Truth

web mapping

mental maps

cartography

rapid prototyping

100 days of mapping

Concept & Development

Joey Lee


Ground Truth is an interactive, web based mapping game that tests how your mental maps match up with reality.

Given various landmark prompts, your goal is to draw these features on a map given a simple outline of a place (e.g. Manhattan). Once you’ve drawn the landmarks, you can submit your guesses to see how close (or far) your drawings align with their actual locations.


→ Play the game (Coming soon!)