Great Wheal Vor was the second-richest tin mine in Cornwall during the 19th century. Importantly, operations there ceased in the early 20th century not due to ore exhaustion, but because of mineral rights boundaries. Tamar has secured the mineral rights over the downward and northward continuation of the Main Lode, suggesting unmined potential below and adjacent to the historical workings. Tamar plans a drilling program to investigate this depth continuation.