#30DayMapChallenge

The #30DayMapChallenge is the brainchild of Finnish cartographer Topi Tjukanov and is a daily cartography and data visualization challenge aimed at the spatial community. Every day throughout November a different theme is set and participants create a map or data visualisation based on that theme and share their results on social media using the #30DayMapChallenge hashtag.

Every year staff at Ordnance Survey get involved and share our submissions via a virtual gallery.