weeklyOSM 798
30/10/2025-05/11/2025
Community
The 30 Day Map Challenge 2025 has officially begun, featuring 30 distinct mapping themes, one for each day of November. Participants are invited to create maps inspired by the daily themes and share their work on social media using the hashtag #30DayMapChallenge.
- For the first day’s theme ‘Points’ Michaël has contributed a map highlighting the world’s mountains exceeding 8,000 metres in elevation, created using R and the Overpass API.
After having successfully acquiring the topographic maps of Namibia (we reported earlier), Grant Slater is now raising funds to purchase the historic 1:50,000 topographic map series of Eswatini (formerly Swaziland).
Events
- Unique Mappers Network have live-streamed days two and three of the State of the Map Nigeria 2025 conference.
Education
- TeachOSM has made a video tutorial demonstrating how to map OpenStreetMap features using satellite imagery. The tutorial guides viewers in identifying ground features by interpreting colour, shape, pattern, and texture.
OSM in action
- Indonesia’s National Research and Innovation Agency, through the Indonesian Seagrass Mapping Partnership project, has developed ► Seagrass Connect, a mobile application that enables public participation in seagrass mapping (plants that compose the seagrass beds), by allowing users to take field photos and record seagrass cover conditions directly from their mobile devices. The application uses OpenStreetMap data as its base map.
Software
1 François Lacombe gave an update on recent upgrades to ProjetDuMois (Project of the Month). This software now allows you to monitor OSM contributions for topic focused projects at a world scale, whereas the tool was initially designed for the country scale. François and Adrien Pavie have improved the workflow and interface to provide OpenStreetMap history digging functionalities for projects that started years ago, a significant development that was made possible thanks to Osmium and the MapYourGrid initiative. The update also gives hints about their roadmap and invited anyone interested to help in further development.
The October 2025 edition of the MapLibre Newsletter has been published.
Releases
- Eugene Kizevich announced that OsmAnd version 5.2 has been released. This release introduced a new ‘Marine’ nautical map style, enhanced search result details, added new features for travellers and drivers, and added a cloud autosync system for user data.
OSM in the media
- Markus Reuter, of Netzpolitik, reported ► that the Chaos Computer Club Hamburg has taken over the Surveillance under Surveillance project, a global map of video surveillance previously maintained by a single individual. The project, which uses OpenStreetMap data, provides accessible information on the locations, types, and viewing directions of surveillance cameras.
Other “geo” things
- Alongside choosing the new mayor for New York city last Tuesday, voters also voted on several ballot proposals, including Ballot Proposal 5: Create a Digital City Map. This measure seeks to establish a centralised, digital version of the city’s official map under the Department of City Planning, consolidating various separately maintained paper maps into a single unified digital system. This proposal was approved by 73% of voters.
Upcoming Events
| Country | Where | Venue | What | When |
|---|---|---|---|---|
 | Catania | Isola Coworking Catania | itWikiCon  | 2025-11-07 - 2025-11-09 |
| UN Mappers #ValidationFriday Mappy Hour | 2025-11-07 | |||
 | Karlsruhe | Geofabrik, Amalienstraße 44, 76133 Karlsruhe | Karlsruhe Hack Weekend November 2025 | 2025-11-08 - 2025-11-09 |
 | Cafe Bella Rosa | Social Mapping Saturday: Long Park | 2025-11-08 | |
 | Salzburg | TriBühne Lehen | Maker Faire Salzburg | 2025-11-08 |
| Bolzano - Bozen | Mapping NOI Techpark in OpenStreetMap | 2025-11-08 | |
 | TAK Kadıköy Tasarım Atölyesi | OpenStreet Haftasonu Buluşmaları | 2025-11-09 | |
 | København | Cafe Bevar’s | OSMmapperCPH | 2025-11-09 |
 | Kolkata | Park Street | 8th OpenStreetMap West Bengal Mapping Party (Kolkata) | 2025-11-09 |
| Jalpaiguri | Thana More | 9th OpenStreetMap West Bengal Mapping Party | 2025-11-10 |
| Missing Maps : Mapathon en ligne - CartONG [fr] | 2025-11-10 | |||
 | 臺北市 | MozSpace Taipei | OpenStreetMap x Wikidata Taipei #82 | 2025-11-10 |
 | Zürich | Bitwäscherei Zürich | 181. OSM-Stammtisch Zürich | 2025-11-11 |
| Hamburg | Voraussichtlich: “Variable”, Karolinenstraße 23 | Hamburger Mappertreffen | 2025-11-11 |
| Heidelberg | Urban Kitchen, Heidelberg | Rhein-Neckar OpenstreetMap Treffen | 2025-11-11 |
| Transmission Grid Mapping Together (Online) | 2025-11-12 | |||
| München | Echardinger Einkehr | Münchner OSM-Treffen | 2025-11-12 |
 | Madrid | Online | Mappy Hour OSM España | 2025-11-13 |
| Berlin | Sophieneck | 209. OSM-Stammtisch Berlin-Brandenburg | 2025-11-13 |
 | Online | OpenStreetMap Midwest Meetup | 2025-11-13 | |
| Bochum | Das Labor, Alleestraße 50, Bochum | OSM-Treffen in Bochum | 2025-11-13 |
 | Dundee | Abertay University, Dundee, UK | State of the Map Europe 2025 | 2025-11-14 - 2025-11-15 |
 | LaNum - Bidart Izarbel | Rencontre Mapadour | 2025-11-14 | |
| Kannur University SAT Campus, Payyannur, Kerala | State of the Map Kerala 2025 | 2025-11-15 - 2025-11-16 | |
| Meerut | Suraj Kund/Gandhi Nagar, Meerut | 25th OSM Delhi MapWalk (Meerut) | 2025-11-16 |
 | Waitematā | Auckland University of Technology, New Zealand | FOSS4G International Conference 2025 - Auckland | 2025-11-17 - 2025-11-21 |
| Internationale GeoWeek - Online Mapathon von ÄRZTE OHNE GRENZEN (AT/CH/DE) | 2025-11-17 | |||
 | Budapest | NNG Kft. | OSM térképest 2025-11-18 | 2025-11-18 |
| Missing Maps London: (Online) Mid-Month Mapathon [eng] | 2025-11-18 | |||
| Lyon | Tubà | Réunion du groupe local de Lyon | 2025-11-18 |
| Bonn | Dotty’s | 194. OSM-Stammtisch Bonn | 2025-11-18 |
| City of Edinburgh | Penny Black (formerly the Black Bull) | OSM Edinburgh pub meetup | 2025-11-18 |
| Online | Lüneburger Mappertreffen | 2025-11-18 | |
| Newport News | Christopher Newport University | Christopher Newport University Mapathon | 2025-11-19 |
| Karlsruhe | Chiang Mai | Stammtisch Karlsruhe | 2025-11-19 |
| Madrid | Online | Mappy Hour OSM España | 2025-11-20 |
| UN Mappers Mappy Hour for #OSMGeoweek | 2025-11-21 | |||
| Missing Maps : Mapathon en ligne - CartONG [fr] | 2025-11-24 |
This weeklyOSM was produced by PierZen, Raquel IVIDES DATA, Andrew Davidson, barefootstache.
We welcome link suggestions for the next issue via this form and look forward to your contributions.
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