New National Maps of Switzerland

swiss-topo

Switzerland is updating its official map series. The new maps are digitally based and use new fonts, symbols and colours—railways, for example, are now in red. They replace the 1:25,000 series that dates back to the 1950s; all 247 sheets should be replaced by 2019. You can compare the old and new map designs on this interactive map (screencap above). [via]

Copper Plates Used to Make Topo Maps on Display

msu-copper-plate

The Michigan State University Map Library now has on display three copper plates used to make the 1912 USGS topographic map of the Lansing, Michigan area. “From the 1880s to the 1950s, the U.S. Geological Survey used engraved copper plates in the process of printing topographic and geographic quadrangle maps. Copper alloy engraving plates were inscribed with a mirror image of the points, contour lines, symbols, and text that constitute a topographic map. Each plate was inscribed with details for a single color of ink.” [via]