Past Meetup

It's an OpenStreetMap mapathon! with LA's Buildings! at the LA Times!

This Meetup is past

34 people went

Location image of event venue


Mappers! Join us Saturday, April 2 as we chow down on pizza and begin importing all 3 million buildings in L.A. County into OpenStreetMap! Starting with the City of Los Angeles!

Organized by maptimeLA ( hosted by the Los Angeles Times (, this mapathon helps to kick things off with the import. Mappers of all skill levels can join in, be it online or straight outta the Times Building!

We’ll have a tutorial session to get things started for new folks on what OpenStreetMap is and how to contribute to this effort and the OSM community at large!

To participate in the local mapathon please RSVP by 5pm PST, April 1st. If you are unable to make it and still want to participate, we’ll post instructions on the wiki page (,_California/Buildings_Import).


Before the event

• Pre-register for the event. Times security will need the names of those attending.

• Get an OSM account ( for importing, and be sure to add “_import” to the back of your username.

• Install JOSM (, if you have issues we’ll help you out during the event.

For the event

• Bring a laptop.

• Bring a photo ID to check in with security.

Parking can be tricky, but there are some surface metered spots. The Times garage at 213 S Spring Street costs $5 for the whole day. If you’re into public transportation, The Times is located just two blocks south of the Civic Center Metro subway station and close to a huge number of bus lines.

The Times is located at 145 S Spring Street in Downtown Los Angeles. Please enter through the main lobby at the corner of Spring and 2nd streets and check in with security. The mapathon will be located in the community room located across from the security desk.

OpenStreetMap is a collaborative project that anyone can edit and improve. The Los Angeles Times uses OSM data to power many of its maps, both online and printed in the newspaper. Want to learn OSM right now? Start by going here, learnOSM ( and check out this good guide to JOSM ( Want to start contributing to other projects beforehand? Try maproulette (! Or help out with the Humanitarian OpenStreetMap team (! Be sure to use a different OSM account or make a new one without the _import one you made for this import. This helps track the edits made to OSM.


Maptime is, rather literally, time for mapmaking. Our mission is to open the doors of cartographic possibility to anyone interested by creating a time and space for collaborative learning, exploration, and map creation using mapping tools and technologies.

This open learning environment for all levels and degrees of knowledge offers intentional support for the beginner. Maptime is simultaneously flexible and structured, creating space for workshops and for independent/collaborative work time.

Inspiration for Maptime comes from both hack nights and knitting circles. Both are models of spaces for people to create and learn together. Our goal is to provide this space with an open heart and without pretension. You can bring your own projects to work on, or just hang out and socialize or ask questions. Some people are experts, and some people are just getting started, but all of us are learning, so why not do it together?

Maptime is hands-on, so don't forget to bring your laptop! If you have an extra laptop, bring that too (in case some people forget to bring theirs).

Maptime is hands-on, so don't forget to bring your laptop!