Historical Markers

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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.