GR Silver Mining Ltd. announces the completion of the 3D DC resistivity, induced polarization ("IP") and ground magnetic geophysical survey covering over 7 km of prospective structural corridor as first step of a district-scale generative exploration program at the Plomosas Project, Sinaloa, Mexico. GR Silver Mining's 3D DC resistivity, IP and ground magnetic geophysical survey cover 7 kilometres along strike, connecting the mineralized trend at San Marcial with the GAP and San Juan Areas further to the northwest (Figure 1). This is the first-ever surface geophysical program carried out in this under-explored area of the Plomosas Project. The ground geophysical survey was completed and processed by Dias Geophysical Ltd. (of Saskatoon, SK, Canada) and Condor Consulting Inc. (of Lakewood, CO, USA) respectively, producing 3D chargeability, resistivity, and magnetic inversion data products. The geophysical program was comprised of a ground walking magnetometer and a 2D and 3D direct current induced polarization (DCIP) survey, using Dias Geophysical's proprietary DIAS32 system. The survey was carried out with a pole-dipole configuration, and 2D and rolling distributed 3D arrays, using 200 m spaced lines in a NE-SW orientation.