Daily social mapping project happening every November

The official home of #30DayMapChallenge, a daily mapping challenge open to everyone. Every November, participants create one map a day for 30 days — each based on a different theme — and share them on social media using the hashtag #30DayMapChallenge.

2026 themes

The 2026 challenge runs from 1 to 30 November. Here are the 30 daily themes. Themes from past challenges are kept in the Archive section.

The 2026 challenge is supported by Mapbox. As always, you're free to use any tools and data you like.

Date	Name	Description
01-11-2026	Points	A map challenge classic. Map with points.
02-11-2026	Lines	A map challenge classic. Map with lines.
03-11-2026	Polygons	A map challenge classic. Map with polygons.
04-11-2026	Clusters	Clusters of something. Hotspots, groups, things that gather together.
05-11-2026	Senses: Sight	How do you see something? Maybe map a viewshed?
06-11-2026	Vintage	Spin up your time machine and do a map which looks like a historical map, or maybe the theme itself should be vintage.
07-11-2026	10 minute map	You have no more than 10 minutes to complete this map.
08-11-2026	Utopia	A map of something which could be.
09-11-2026	Urban-rural	Urban or rural. Cities and countryside.
10-11-2026	Prompting only	For this map, make AI work for its money and produce something from start to finish in a chat window or on the command line.
11-11-2026	Senses: Sound	How do you hear something? How do you map a soundscape? Noise pollution mapped?
12-11-2026	Power	Power as in nuclear power? Or physical power or influence? Power grid on a map? Read this the way you want, like every other prompt.
13-11-2026	Interactions	Interactions between things, or maybe the result would be an interactive map?
14-11-2026	Borgesian map	A map so detailed it becomes the territory. Inspired by Borges' On Exactitude in Science.
15-11-2026	Inside out	Inside out, upside down. Something on this map is not quite right.
16-11-2026	Collaborative map	Do a map with a friend, colleague or a stranger. AI doesn't count as a friend :)
17-11-2026	Light & dark	Play with visual effects. What can you map with just light and shadows?
18-11-2026	NULL
19-11-2026	Senses: Smell	How do you map things which your nose can sense? What does a smelly map look like?
20-11-2026	Hexagons	Hexagons, the good old bestagons.
21-11-2026	OpenStreetMap	The awesome data source for mapping. You can also use this day to edit OSM.
22-11-2026	Projections	The different ways of representing a globe on a flat surface. What does your favourite map projection say about you?
23-11-2026	Senses: Taste	Food, drink or something else which you can taste.
24-11-2026	Network	Route network, transit network, human network or something completely different.
25-11-2026	Is this a map?	Stretch the limits of maps and blend your map with an artwork or some creative data visualization. When does something become a map and when does it stop being one?
26-11-2026	Water	About 71% of the Earth's surface. That wet thing, you know?
27-11-2026	New tool	The challenge has always been about learning things. Try out a new tool in your mapmaking workflow.
28-11-2026	Senses: Feeling	The most abstract of the senses series. How would you map a feeling?
29-11-2026	Raster	Do something cool with pixels.
30-11-2026	Pen & paper	Time to wrap up the challenge by closing your laptop for a while and going back to basics. Do an analogue map with pen and paper.

How it works

You can prepare maps in advance, but the spirit of the challenge is to publish one on each themed day. Post a picture of your map to X, Instagram, LinkedIn or any platform you prefer with the hashtag — no sign-up needed. There are no restrictions on the tools, data or technologies you use, and fewer than 30 maps is also fine. Please follow the Code of Conduct below.

For data sources, software and tutorials, see the Mapping resources page.

Explore the maps

Every November mappers around the world share tens of thousands of maps. Browse the growing list of community map collections to get inspired — and add your own so others can find it too.

Across the web

Since 2019, the community has shared more than 50,000 maps under the hashtag. As the challenge has spread across more and more platforms, pinning down exact totals has become nearly impossible — deeper community-maintained stats live in Haifeng Niu's #30DayMapChallenge bot and David Friggens' 2019–2020 metadata gallery.

Follow the #30DayMapChallenge hashtag wherever you already hang out:

Bluesky Mastodon Threads X LinkedIn Instagram

There's also an official 30DayMapChallenge LinkedIn page for announcements and occasional highlights — but the hashtag is where the challenge happens, on whichever platform you prefer.

Questions, ideas or anything else? Reach out at [email protected].

Code of Conduct

Whether you are a GIS expert or have never made a map before, everyone is welcome to participate.

But keep in mind a few things:

• All maps you publish have to be your original work. Don't steal content from others.
• Give credit to the original data source whenever possible.
• The challenge is all about creativity, openness and the joy of beautiful maps and cartography. It is not a competition.
• Be smart with AI tools. They can genuinely help your mapmaking, but if you generate all your maps straight from a prompt, where's the fun? Day 10 (Prompting only) is the exception: that's the one day to see how far prompting alone gets you. Whatever you use, be open about how you made it.
• Don't be an asshole. Don't harass or steal from others.

Inspiration for the challenge came from Inktober and Tidy Tuesday.

Merchandise

Get your official #30DayMapChallenge stickers from Redbubble.