I’m making a specific map for the Pennine Way and have found contours and the osm data files i need. The problem is that the contour .img’s are for the whole of Great Britain + Ireland and when viewing the map in BaseCamp i get a lot more than i need.
Is there a way of telling mkgmap the bounds i want the finished gmapsupp.img to have? (The contours come as premade .img’s)