Tombill Original Mine holds 6 patented claims [T.B 10643-10648) totalling 262.60 acres in Lindsley Township along the Lindsley-Errington boundary line.  The property is readily accessible from the Trans-Canada Highway and is approximately 11.3 km west of Geraldton and the Greenstone Mine.

The Tombill Original Mine lies about 350 feet south of a major fault zone (approximately 6 miles long) known as the Bankfield – Tombill Fault.  The orebodies are hosted in steeply dipping volcanic and sedimentary rocks striking approximately east-west and surrounded by younger granites.