Chris's really simple GPX viewer for explorer squares

Drag and drop one or more GPX (or KML) files from your PC onto the map to see which squares a route visits. Zoom level 14 is what matters for explorer squares. You need to zoom manually as I'm using a debug layer to provide the grid.

KMLs use embedded colours, GPXs are shown in various shades of blue. The KML of most useful squares from your summary page on Veloviewer works nicely, as does the KML generated by this python script I found and extended.

Map

File colour codes and stats:

If this means nothing at all to you, you probably aren't doing Veloviewer Explorer. The code is available on my GitHub for you to use as you like.