Mappa Mercia is a project to grow OpenStreetMap in the West Midlands, UK. We run community events, provide training and support local organisations wishing to open up their data.

Latest from the blog

End of our JOSM paint styles

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Several years ago we created JOSM paint styles to help with the task of mapping gritting routes. The styles made it easier to identify which roads had the gritting tag. The recent versions... READ MORE

Unusual Objects – an occasional series

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Whilst surveying to collect data your day might be enlivened by spotting something out of the ordinary which might be of some interest or amusement to fellow mappers.  (Sharing with family or friends... READ MORE

“Night School” status report

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Yesterday the mapping community in the UK held an online “Night School” mapathon to hep map schools. So how did we get on? We did it! Yesterday we set the record for the... READ MORE