Hello Cucho, I'm following your adventure too.
I'm new as gold refiner but not as mineral collector, this is my opinion, hope can help
The vein could still exists, for sure there are many veins carring gold around there
You have to understand how your gold come to your spot. If flakes are big the vein is not far. With far I mean a range of 1+ km. But maybe 200+ km if the gold was placed by glacier or other geological movements.
There's a lot to consider
That's the first thing u have to check on geology books of ur territory
Look for quartz rock, usually white iron stained and cristallized. Watch the territory from high spot, look at the mountains, look for depressions, sediment areas, basament and rocks color change, study the territory to have some clues.But most imporant look for texts about geology of your territory AND texts about mining operations in past on the territory all the informations can help ypu
the gold bought from meteorites, after collision with earth and being buried, was push up usually with the quartz, and these gold spot area are "dispersed" on the earth with no logical position. In millions of years these gold spots were covered by material, then some spots was partially bought to the sun (and usually concentrated in different places) by streams in millions of years,
maybe the meteorite gold spot is all the area
Scan with the detector but stay safe....
BUT maybe it's worthing for ur safe just grab the placer gold you can on ur spot.
As you reached the spot, others can....
Watch out and stay safe
Morris