The guys in hedland , do 2 week stints from perth....Air services did a survey on port hedland about 3 odd years ago, with the mining boom/traffic increasing it was just below the threshold for a tower.
Its 20nm traffic circle on hedland, it works really well and informs the airlines of the helicopter movement from the port.
It will never be a towered aerodrome the traffic has died in the arse .