๐ ๐๐ถ๐ฟ๐๐ ๐ฃ๐ ๐ง๐ถ๐น๐ฒ๐ ๐ ๐ฎ๐ฝ, taught with Jon Schleuss, will show how to display a massive dataset on an interactive map using Protomaps and MapLibre. https://schedules.ire.org/nicar-2026/#/session/1303
Today weโre launching Open Climate Risk, a fully open option for U.S. building-level climate risk data. Itโs unique because it allows you to see not only risk scores, starting with wildfire, but also the complete underlying dataset, methods, and codebase. carbonplan.org/research/cli...
Two things that have been keeping me busy lately: a slate of changes to @planscore.org for this yearโs surprise midcycle redistricting environment, and a collection of contributions to @protomaps.com base maps including support for @overturemaps.bsky.social data.
medium.com/@michalmigur...
Cyprus, Greenland, Faroe, Iceland, Japan, New Zealand, Norway, Svalbard, Portugal, Madeira, Spain, England, Scotland, Wales, and the United States are now included in Mapterhorn v0.0.7.
Special thanks to Daniel Silk (NZ), Hidenori Fujimura (JP), and Christopher Varjas (US)!
If you work in geospatial, PMTiles is one of the technologies you need to know going into 2026.
This past year, I wrote an R package to help you get started.
Learn how here:
people kept asking for pmtiles merge, now there is pmtiles merge, inevitably they will ask why it refuses to work for overlapping inputs, here is why merging tilesets is hard (blog post):
protomaps.com/blog/pmtiles...
The @sfomuseum.bsky.social aviation collection has new aerial imagery / and we have published some experimental work about hosting and serving the entire planet OSM @protomaps.com pmtiles database, locally and offline, on a recycled ipad โย millsfield.sfomuseum.org/blog/2025/12...
new pmtiles CLI feature (the most requested one)
pmtiles merge input input output
docs.protomaps.com/pmtiles/cli#...
download new version here:
github.com/protomaps/go...
SFO Airport Museum's map viewer is powered by a raster pmtiles archive + leaflet
millsfield.sfomuseum.org/map/#2025/fg/
Nice work and good to see @protomaps.com finding adoption in major news outlets!
What would happen if the Amazon rainforest collapsed?
Our look at deforestation and feedback loops.
Also, the perfect occasion to make use of our new MapLibre/Protomaps scroller component.
#maps #dataviz #ddj
www.spiegel.de/wissenschaft...
Flix Bus in US powered by @protomaps.com and @openstreetmap.bsky.social
I love when apps clearly attribute their map source.
I'll also share some latest developments using @protomaps.com and @maplibre.org to self-host vector maps with custom layers, beautiful rendering and seamless zoom, in case you are interested in that type of thing ๐บ๏ธ
The #protomaps project recently reached its goal of 50+ GitHub Sponsors!
Becoming a sponsor allows commercial use of the hosted API: protomaps.com/api and supports the compute and storage for free daily planet builds: maps.protomaps.com/builds/
GitHub Sponsors: github.com/sponsors/pro...
New blog post on @mapterhorn.com - terrain for web mapping
protomaps.com/blog/mapterh...
mapgl for #rstats supports @protomaps.com PMTiles as a data source in both @maplibre.org and @mapbox.com maps.
If you need to visualize large datasets but struggle with hosting / infrastructure requirements, PMTiles may be exactly what you need.
Have you been waiting for "Protomaps Terrain"?
It's arriving! @mapterhorn.com is an independent project created by @oliverwipfli.ch - a global elevation model built from multiple sources, distributed as a single PMTiles archive
Great to see protomaps go from strength to strength with handy open source viewer. www.youtube.com/watch?v=4Qn3...
Picture of a New York Times newspaper showing an article titled Potent Ingredients Combine for a Devastating Flash Flood Season.
A very manual @protomaps.com to print pipeline. Always excited to get something in print ๐๏ธ www.nytimes.com/interactive/...
Added a section to the PMTiles docs on fast uploading to @source.coop using only the pmtiles single binary CLI:
docs.protomaps.com/pmtiles/clou...
Easier to install than awscli or rclone - just bring your repo credentials!
I'd like to give a big thanks to @protomaps.com for their fantastic work. Our open source Android port of Soundscape, the navigation and exploration app for visually impaired uses a protomaps server and it's reduced the cost to the supporting charities by a huge amount. github.com/Scottish-Tec...
There's an ongoing issue preventing PMTiles hosted on GitHub Pages from being loaded correctly in Firefox
Issue:
github.com/protomaps/PM...
Minimal Reproduction using raw fetch and plain files:
github.com/bdon/ghpages...
Work at @github.com or know someone who does?
Nouveautรฉ - la prรฉvisualisation cartographique
๐บ๏ธ La prรฉvisualisation des fichiers PMTiles et GeoJSON est dรฉsormais disponible sur la plateforme ! #geo
Et bientรดt dโautres formats (flux WMS et WFS, CSV contenant des donnรฉes gรฉographiques) grรขce aux communs numรฉriques de cartes.gouv.fr (IGN).
En savoir plus : www.data.gouv.fr/fr/posts/pre...
Map of faults (burgundy), earthquakes (dark red), Alquist-Priolo earthquake fault zones (light red), landslides (orange and yellow), shaded relief, and a base layer in the East Bay (Berkeley & Oakland).
My first @protomaps.com
Faults, earthquakes, Alquist-Priolo fault zones, landslides, custom shaded relief, and a base layer. Just the East Bay for now. ๐บ๏ธ
New York tile factory
Where tiles come from
Possibly the first PMTiles appearance on the NYT front page?!
Shane @carbonplan.org Comparing performance between single GeoParquet, quadkey partitioned GeoParquet, FlatGeobuf, and PMTiles #cngconference
New rewrite of pmtiles.io going online soon
you can try it at beta.pmtiles.io
feedback link in nav bar!
