type=street rendering improvement type=street was overriding the ways it was on. So for example this residential street would have only rendered between 1905-1921 instead of from 1793. Cemetery pattern, icon and name The landuse=cemetery and amenity=grave_yard were only rendering a colour and had no pattern, name or icon. Now all Christian cemeteries have a cross pattern and all graveyards have a tombstone pattern and a label and icon. Note: The cemetery still doesn’t render the name. Wi...

After being inspired during Mapping USA by OpenHistoricalMap and OldInsuranceMaps.net, explore the history of Sanborn Fire Insurance Maps in Sandusky, Ohio. How might these maps be used by local agencies ver...

OpenHistoricalMap has the daunting (and awesome) mission of building the world’s most detailed out-of-date map. As a Charter Project of OpenStreetMap US, you can help sustain the development of OpenHistoricalMap by donating. Love what we do? Consider also becoming a member of OpenStreetMap US here. Thank you for your support!

I’m presenting OpenHistoricalMap at a geography symposium in Mexico I’ll be in Morelia June 16–19 for the XIV Symposium on Geography Teaching in Mexico. My talk is Wednesday the 17th, in the morning session on GIS and mapping tech. I want to walk geography teachers and students through OHM: what it does, where it parts ways with OpenStreetMap (the time attributes, mostly), and how it can work in a classroom for teaching historical geography and mapping. I’m also going to pitch the idea of stude...

Welp, I'm joining the ranks of the unemployed tech workers again. As before, I'm in a good situation. I don't depend on my former employer for health insurance. I've got some severance and savings, my family is in good health, we have a roof over our heads, and I have good connections. I don't feel afraid. But maybe I should? The job market is worse than last time this happened to me. I've seen experienced and talented people go for weeks and months without offers, and read some harrowing stories about what under-employment looks like for older tech workers these days. After a little detour into the biomedical field, I'm looking to get back into helping to solve important geospatial problems. If you've got them, please let me know.

Join the OpenHistoricalMap team OSM US’s first Mappy Hour of 2026 on Wednesday, March 4th from 8 - 9 pm Eastern. This Mappy Hour kicks off the first of regular online gatherings for the OHM community in Nort...