Prelim JORC, page-43

Gary123 mentioned - overland conveyor:
Haul trucks are expensive and require a lot of maintenance and its a matter of doing some costing for moving the ore from A to B.
I noticed a South32 article :
"An overland conveyor links our Worsley bauxite mine in Western Australia’s south west to the refinery where the ore is crushed, 50 kilometres (km) away. It is the longest of its kind in Australia, and a great engineering feat. This conveyor belt passes through 42.5 km of forest, crosses 29 roads and two rivers. Travelling at 25km/hour and carrying 3,400 tonnes of bauxite every hour, the conveyor could load a semi-trailer in about 30 seconds."

Almost same distance as Aurora Tank to Challenger Mill . Over a long term it may be much cheaper Overland Conveyor Versus Haul Trucks and building roads to accomodate . It all depends what JORC Marmota has as well as the mine life before getting too far ahead of ourselves I suppose. Interesting concept Gary123.