This Old Hack has just seen an idea from another goverment department which proposes that were farm boundaries are currently unmarked that the farmer will be required to install markers, ideally 75 mm white topped fence posts, so that aerial mapping can detect a boundary where there are currently no physical markings!!! Ranges etc He He, my neighbours are on a a range whith hundreds of sheep!!! he's worried his boundary will change with every picture and where will he get the money for the post tops. Come to think of it, heck so am I - he might get a bit of my land. On your bike Registry people !!!