Are you sure you're not mixing up the property with something else? The Caren property that Auryn acquired via acquisition of Minera Mantos Azules Chile is an underground mine, not a placer. There has been no mention of placers in any of the public documentation that I've read.
Auryn has been concentrating on sampling/following the high grade (up to 124 g/t) Merlin veins that comprise the Caren mine complex.