N 1/2 baja 14 -left side of pic-is being mined -CWRN hasnt touched S 1/2-right side-so mining areas shown reflected prior concession owner Cemex operations-or maybe even a prior concession to cemex- all of 73 drill holes were I think for N1/2  though 4 were outside of pre 2011 boundaries- but there are a lot of iron outcrops that may have had incipient mining on S side

200' wide corridor connects 2 halves of concession w part of river in S 1/2  though additional environment considerations would probably apply to the river,which is often dry, more like a wadi

as you can see they have only touched on a small part of this concession re mining-and only near the surface in most places at that and they have other concessions also