Several unique maps showing border families, reivers, clans and battlefields are described below. If you offer, or know of an item that should be listed here, please let me know . I found a page with a rather interesting History of the Ordnance Survey . The obvious disadvantage of this scale is that each map covers a smaller area. I have extracted those from the NY series and will try to add others covering today's Cumbria.
OS maps are, of course available from other sources.
If ordering from the States, a US source, such as David Morgan, may prove cheaper. The links below allow purchase from iBS, but these maps are also available from several other sources. The following Landranger sheets cover the areas stated and general coverage is shown on the map extract to the right. These sheet references do not apply to the Pathfinder series. While these maps are readily available within the U.K., they are harder to find in the U.S. and other countries.