I gave this one the real college try. I managed to find what I now believe to be the corner post and some wire of the old fence that use to stand in this area. I also managed to find a 3/4" square property marker about 4 meters to the east of where the brass cap should be.
The area was certainly worked over recently in that the grass is growing in a manner such that one can see the rows of grass as planted by the seed-drill. As it was getting dark at the time I bailed on this one with a promise to myself that I would come by on our return trip from Lethbridge in a few days time.
Stay posted, The Dawntreaders