30 Day Map Challenge

’Tis the season again: the #30DayMapChallenge by Topi Tjukanov returns this November, inviting #cartographers, spatial data scientists, and GIS enthusiasts to create one #map per day inspired by daily themes. Whether you’re crafting or simply admiring, it’s a month-long celebration of creativity, #geography, and data #visualization.
Author
Published

October 15, 2025

’tis the season again: The 30 Day Map Challenge by Topi Tjukanov is approaching. Started in 20191, the #30DayMapChallenge calls upon cartographers, spatial data scientists, and GIS experts to produce a map a day during the month of November2. Each day, the 30 Day Map Challenge issues a (often, loose) theme:

This year’s #30daymapchallenge themes

The archive features a selection of past works, if you are looking for inspiration. Some notable entries, include:

Whether participating or observing: A month of cartographic (and often data analysis) inspiration is coming.

Footnotes

  1. Back then, on Twitter, I think?↩︎

  2. As the code of conduct puts it: No matter if you are a GIS expert or never made a map before this challenge, everyone is welcome to participate.↩︎