The Row group was explored by Esso/Chevron in 1986 and Granges in 1993 for its stratabound lead-zinc potential (Sullivan-type mineralization). Although a large area on the east-facing slope of Arrow Creek around the 1200-1400 metre elevation level was found to be anomalous for lead and zinc (values to 350 parts per million zinc and 150 parts per million lead), no mineralization was discovered.

The claims are underlain by sedimentary rocks of the Middle Aldridge Formation, intruded by gabbro sills of the Moyie intrusions, both of the Purcell Supergroup of Middle Proterozoic age. The sedimentary rocks are described as quartzofeldspathic wacke to quartz wacke, with lesser argillites, by Brown and Stinson (Fieldwork 1994, page 113). Albitization is known in the area (Fieldwork 1994, page 114 and petrographic work by Granges Ltd.) and is likely related to the Moyie sills. Isolated outcrops of sedimentary breccias and conglomerates ("fragmentals"), interpreted to be derived by fluidizing (dewatering) of consolidated to semiconsolidated sediments into crosscutting tabular bodies, sheet-like mounds and debris flows (Brown and Stinson, 1994), are locally present.

During 2004 through 2012, Eagle Plains Resources Ltd. completed programs of geological mapping, geochemical (soil and rock) sampling and airborne geophysical surveys on the area as apart of the Iron Range property. A completed property exploration history can be found at the O-Ray (MINFILE 082FSE017) occurrence.