GeoPDF working
Data verification should be easier now. Although less straightforward than in ArcGIS, it is possible to create GeoPDF’s from QGIS. First export a GeoTIFF with worldfile, then use the raster conversion tool and convert to GeoPDF. Works with Avenza PDF Maps.
Historical Markers
There are a number of historical markers around Cornwall Iron Furnace. I wanted to see whether these were available in a GIS format and discovered the hmdb.org (The Historical Marker Database). They have markers for the whole country in various formats including GPX. This is what it looks like with the excess tags and encoding stripped out, converted to shapefile, and with scale-dependent labels in QGIS. The resulting maps are a super FAST way to learn history in context.