I would like to digitize a scanned map, see example below.
The projection and datum information is available on the map. I am familiar with georeferencing of a scanned image that contains multiple latitude/longitude coordinates.
Unfortunately, this particular map has only one lat/long coordinate, map's geographic centre, plus distance measurement (i.e., in yards). I am thinking maybe I could convert the distance measurement into degrees, but I don't know how. Is this possible?