RISC OS Map of Signalboxes RISC OS
http://www.svrsig.org/ cgi-bin/gemap.cgi
Boxes x=3950.08515947755+40 .. 3950.08515947755-40 y=2906.47351241215+28 .. 2906.47351241215-28.
Double-click to re-centre and zoom in.
Use scroll wheel to zoom in and out.
Click 'show boxes' to refresh display.
Use dashboard to see aerial view.
Click on a box icon for more detail.
Map display by Virtual Earth.
Note: lat. and long. are shown in WGS84
coordinates. Signal boxes are shown
on the map with a six figure OS grid
reference but a ten figure reference
is available for many boxes.