Following the level of interest in the calibrated Explorer Grid map for the 1:25,000 scale, several readers have enquired about a similar grid for the Landranger 1:50,000 maps. This would be a far longer and more tedious task, or so I thought, because I obtained the Explorer gridlines automatically from Memory-Map using the ‘Show Map Outlines’ option. I don’t have the digital Landrangers with the same boundaries as the paper equivalents, in fact I don’t think they are available in that form, which rules out that shortcut.
After some poking around on the OS website and mulling over some possibilities with Photoshop, it turned out to be as easy as the Explorer Grid and I produced it within a day, building on the experience gained from the first grid map, which isn’t bad at all. The OS website has a low resolution featureless outline map showing a rough grid (an imagemap file actually) which I pressed into service. I enlarged it and plotted the grid using Photoshop paths, which is actually better than the automatic method since I can easily set the line style, width and colour - I set it to match the Landranger magenta livery. Again the map numbers are transparent which allows the underlying detail to be seen at high zoom levels but keeps them readable at lower levels.
Generally the Landrangers seem to be more popular for walking in Scotland where the lack of superfine detail is not so important in large tracts of wild mountainous country, and I understand there is interest in this grid map for the approaching TGO Challenge.
The usual drill: email me via the Contact page of the main website for the URL to download it (6.25Mb file).