The latitude and longitude are still along the side of the map for SAR. Plus they would get the 911 from my SPOT. Or I could read the location off my GPS.

For archeological finds, I could just read the distance from the start on the vertical and horizontal axis. As long as I remember the start point, I can find it with a magnetic grid.

I designed this for use navigating with a compass I described here. http://gramcracker-gershon.blogspot.com/2012/02/navigating-without-map.html

It is the same site I put up the other day.

Say I travel 075 for 500 feet. I've gone 485' north and 130 feet east. Then I go 070 for 400 feet. That leg is 376' north and 136 east. So I'm 861 feet north and 266 feet east.
As long as I keep a log of my vectors, when I take a break I can sum the movements and know exactly where I am. With that information, I can easily put a dot on the map.

Compare that to trying to orient the map on a windy day on a slope or using a protractor. Then trying to sum vectors using small movements. The last is pretty impossible. The first is simple, although time consuming. It's intended for bushwacking, not for trails.