Myriad of thanks to *all* for making Triple Mapping Party great success

8 mappers in Vilnius, 26+ in London, 32 in Dar, 15 in Nairobi, 15 at Mugumu Safe House and many others online joined our mapping party last Saturday!

Thanks to all of you we were able to map over one third of the entire region in Mara!!

Congratulations all users who were able to map an amazing number of squares. You can also check your own contribution on roads and buildings here.

Thanks also to Polyglot and robert, who have been validating our squares so far !!

I’m not so good with numbers though, and frankly, I don’t think they speak justice to what we have accomplished during our Triple Mapping Party! So I am going to tell the rest of the story in notes and pictures instead…

Mappers in Vilnius, Dar, London and Uganda shared their progress on Twitter: See full Twitter day here and here on Storify.

Benedicto joined us from Zeze


Great work, I am with you from Zeze village – Benedicto

…and Tunapanda from Nairobi! Thanks so much guys!!

15 of us learning to get our map on in Kibera, Nairobi – Jay

Girls at Mugumu Safe House took matters into their own hands and joined us in mapping all day!! Thanks to Rhobi who takes care of the safe house, IT teacher Irene, roadshow Emanuel & the girls at the safe house!

We are very excited to map our Tanzania, here with Madam Rhobi – Irene

Congratulations everyone who participated in the mapping! Hongereni Sana! – Rhobi

We ended the session with so much smile – Irene

More mappers in London!


London in action – Andrew

Happy mapping in Dar!

And finally…


Appreciations and so much thanks from the Safe House for great experience acquired during mapping – Rhobi

Remember: NOW is only the beginning…  we’ll continue to map together, part of Crowd2Map Tanzania!!

Triple Mapping Party – 7th May: Dar est Salaam, London, Vilnius

We are proud to announce the inaugural OSM Mapping Party of Crowd2Map Tanzania, which will take place on the 7th May 2016 in three different cities simultaneously: Dar es Salaam, London & Vilnius

Three Countries, Three Time Zones, Three Tech Hubs – One Crowd 2 Map Tanzania

LondonUCL, 9AM BST

Dar es SalaamBuni Hub, 11AM EAT

VilniusTechnarium, 11AM EEST

Register at Eventbrite:, Facebook: or Meetup (Vilnius):

Download and print our poster:

This will be a fun female-friendly competition-hackathon between the three “camps” of mappers – we will have a “live” link bridging mappers in the three cities via video conference and chat throughout the event. This will be coupled with a “challenge” in Tanzania, where locals will compete to add the most resources prior to the event (read more on the Mapping Competition for locals here).

Everyone is welcome – no mapping knowledge is required, simply a laptop and enthusiasm to contribute! Whether you are an OS mapper, hacker, humanitarian activist, or just someone looking to have a fun Saturday in an inspiring company – we’ll find a place for you!

Learn why your mapping is helping to prevent FGM and put communities on the map.

Why Dar es Salaam? We want to empower everyone in Tanzania and beyond to contribute to establishing better maps of the country hands-on! The event’s co-host Janet from Tanzanian Development Trust will be present on the day to lead the Dar’s team!

Why London? The project is being carried out in partnership with British Tanzania Society, who will be leading the events in London and Dar! We’re expecting quite a crowd of London OSM mappers to show up!

Why Vilnius? The project’s co-creator and co-host of the event Egle, researcher and practitioner of citizen science, will be leading the team of hackers here. Vilnius is the capital of Lithuania, a country ~14.5 times smaller than Tanzania, but has at least 30-50 times better mapped in OSM. Allow us to make a difference!

You can find more details and register for free here, or  join the event on Facebook

We are looking for SPONSORS,

who could support us in providing pizza and beverages to our helpful mappers on the day, and/or provide financial aid or donate smartphones to kick-off data collection in Tanzania.

If you have questions or suggestions about the event, or would like to become a sponsor, please contact us via emailTwitterFacebook or the form below.

For media inquiries please contact Egle or Janet directly.

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