used all 6 probes, but havent found a single spot above 6.06% ore concentration/density
rather odd how it peaks exactly at 6.06 several places, but never more than that
going to build my base next to this small frozen lake - it has 6.06% right at the coast, so i can land safely without too much worry about the center of mass on my vessel

the base itself is going to be very simple - it will be an unmanned operation, but i want to setup a number of lights for an easy landing in darkness
enough batteries to last around 1 day, a few solar panels, and maybe a single big fuel tank to have a reserve - just in case