Map galleries 🗺️↵

Every November the #30DayMapChallenge community creates tens of thousands of maps. This page collects galleries — places where mappers, teams and organisations have gathered their challenge maps in one spot.

Add your gallery

Built a collection of challenge maps? We'd love to link it here. The easiest way is to add a few lines to galleries.yml and open a pull request — see the contributing guide. Not comfortable with pull requests? Open a gallery submission issue instead and we'll add it for you.

2025↵

Federica Gazzelloni — A gallery of maps created for the 2025 challenge.
UPenn Weitzman MUSA program — Collaborative challenge entries from students of the UPenn Weitzman MUSA program (2023-2025).

2024↵

Estonian Land Board — Daily maps published by the Estonian Land Board cartography team.
University of South Carolina Libraries — A blog showcase of challenge maps from the USC Libraries.

2023↵

Blake R. Mills — Data, code and visualizations for the challenge (2021 and 2023).

2022↵

@229Biodiversity
@_aasmith
@_ansgar
@aliciaoberhol
@aman_bagrecha
@andrewdc_nz
@arkarjun
@Artisans_Cartos
@bordoray
@coughlinmaps
@crisalpuche
@CtuGeomatics
@curious_Fabian
@david_leather
@DerekSollberger
@DevinMLea
@g_fiske
@gkankia
@HistoCarte
@IcaroBSC
@Julian_H0ffmann
@Kevin_B_Haynes
@kirstywilcox2
@MapsByAntonia
@MapsbyW
@maptheclouds
@Mboschm
@mildthing99
@MindOverMagma
@MrPecners
@nicolemark_
@nimwendil
@nrennie35
@oh_sk
@pokateo_
@professorkao
@quorumetrix
@rcrmj
@RickyAngueira
@Romainsologne
@ryanahart
@sameer_enigma
@samiasab90
@ShijiaWendy
@TheGISDiva
@thomasdubdub
@tkardi
@toss_cas
@XenonGT
Petra Duriancikova — A complete set of maps for the 2022 challenge.

2021↵

@_ansgar
@A_Tack
@andrewdc_nz
@AsjadNaqvi
@azolnai
@bogind2
@BryanRVallejo
@cartocalypse
@CasegFraith
@CRVanPollard
@dakvid
@darwinanddavis
@DenitzaV
@DerekSollberger
@DiasporaDan
@fede_gaspari
@geokaramanis
@geomenke
@gontsa
@HeikkiVesanto
@HistoCarte
@ishiba
@IvaBrunec
@ivanziogeo
@jaroslav_sm
@Julian_H0ffmann
@KonturInc
@leeolney3
@loreabad6
@luca_northsouth
@Mai_sajed
@MapOfTheWeek
@MapsByAntonia
@maptheclouds
@maticodes
@michelstuyts
@NearandDistant
@nello394
@nrennie35
@OrdnanceSurvey
@pokateo_
@positium
@Pow__C
@professorkao
@raimun2
@rcrmj
@recifs
@richard_vogg
@Saint_GIS
@samwise_v
@schochastics
@SouthArrowMaps
@StaridasGeo
@ubilabs
@VictimOfMaths
@Zaaaana_
Xavier Olive — Daily maps and source code, made largely with Python.

2020↵

@_anirudhgovind
@samwise_v
@tomodraco
Alexander Kmoch
Alexandra Kapp — Maps and code from the 2020 challenge.
Andrew Zolnai
Ariel Kadouri
Aurelien Chaumet
David Friggens
Evelyn Uuemaa
Fedir Gontsa
Kate Berg
Kontur
Marco Minghini
Odile Plattard
Owen Powell
Richard Vogg
Steph Orellana Bello
Tiago Sousa
Valentín Sastre