Litchfield Minerals (ASX: LMS) has advanced a belt-scale copper-nickel exploration model across the Harts Range after June quarter technical work linked a deep conductor beneath Blackadder-Baldrick with wider regional structures and mineralising pathways. Litchfield has planned two approximately 50km-long MT and gravity survey lines across the Harts Range corridor using 1km MT station spacing and 500m gravity spacing to test for additional C2-style anomalies. A separate combined MT and gravity survey near Oonagalabi will test a conductivity anomaly at about 2.5km depth over an estimated 40 to 50 days. An induced polarisation survey contracted for Silver Valley was scheduled to start in early July to identify sulphide-bearing extensions beneath cover and generate drill-ready targets. Litchfield spent $1.116m on exploration during the quarter, including $1.032m at Oonagalabi, $70,000 at Silver Valley, and $14,000 on general exploration activities.