AI-ASSISTED · EDITOR-REVIEWED
Theme brief
The constraint is the content. Choose a tiny question, use ready data, and spend the final two minutes on title, source and export rather than chasing a complex analysis you cannot explain.
Official prompt“You have no more than 10 minutes to complete this map.”
30DayMapChallenge 2026
WAYS IN
Four map ideas
- 01
Map the ten nearest parks from a chosen point.
- 02
Turn a two-column CSV into a locator map and stop when the timer rings.
- 03
Draw a radius map for one everyday accessibility question.
- 04
Use one dataset, one symbol and one annotation — nothing else.
IN THE DIRECTORY
Recommended tools
Felt
Fast import, styling and annotation make it ideal for a timed web map.
Freemium · View detailsDatawrapper
Its guided workflow keeps small thematic maps focused and export-ready.
Freemium · View detailsuMap
Quickly layers markers or lines on OpenStreetMap without setup.
Open source · View detailsgeojson.io
Best for a tiny hand-drawn map or a rapid geometry check.
Free · View detailsSTART WITH A CLEAR LICENSE
Data sources
Query amenities, shops and other tagged places with Overpass Turbo.
ODbL 1.0 · attribution required Natural Earth populated placesA compact global set of city and town points for small-scale maps.
Public domain Your own observationsDocument the collection method, date and privacy decisions.
You choose the licenseLicenses are a planning aid, not legal advice. Check the source record and version you actually download; terms can vary within a catalog.
BEFORE YOU EXPORT
Cartography check
Prepare nothing except the question. Record the screen or save timestamps so the constraint remains part of the story.
COMMUNITY MAPS
Selected work
First participate officially by posting publicly with #30DayMapChallenge. You can then suggest that original post for our independent MapTools picks. We link to the source, credit every author and use images only with permission.
Suggest for MapTools picks