The 15.0 g/t boulder find point lies 116 m off it, and 20.66 km of the trace runs inside the district. The 15.0 g/t boulder find point lies 116 m off it, and 20.66 km of the trace runs inside the district. GTK's Iiruunjärvi report tabulates 18 mineralised-boulder rows in a 249 × 490 metre footprint on the lake's south shore; nine grade at or above 1 g/t Au, to 11.2 g/t. Figure 1: Regional location of the Pora Gold Project in Finland. Several of the highest-grade samples reported here - including the 28.0 g/t, 15.0 g/t, 8.3 g/t and 1.98 g/t results - are from glacially transported boulders.