detecting in (presumed) tertiary gravel tunnels in Costa Rica

[BillA]

Anyone have any experience in detecting tunnel faces for placer gold?

I live in the Osa *****ula of SW Costa Rica and there are areas here that have produced large amounts of placer gold. Other than working the streams and rivers, much success was also had by tunneling along the 'ancient' stream/river beds (strike and dip unrelated to current topology). Many of these workings are now abandoned and I have the 'opportunity' to take a detector through them, for a deal of course.
Also to participate in the extension of an existing mine tunnel (or is it a 25m prospect??).

I have a Minelab 4000 w/extras.
Anyone have experience with such?

For what its worth, no shoring is used - but many of the tunnels are 40+ yrs old w/o caving.

Bill

[Hoser John]

You need to talk to BCR-Bill in Costa Rica-google Hotel Fenix and get in touch with him--good man, better miner and knows CR righteously-John

[nforest]

Anyone have any experience in detecting tunnel faces for placer gold?

I live in the Osa --deleted--ula of SW Costa Rica and there are areas here that have produced large amounts of placer gold. Other than working the streams and rivers, much success was also had by tunneling along the 'ancient' stream/river beds (strike and dip unrelated to current topology). Many of these workings are now abandoned and I have the 'opportunity' to take a detector through them, for a deal of course.
Also to participate in the extension of an existing mine tunnel (or is it a 25m prospect??).

I have a Minelab 4000 w/extras.
Anyone have experience with such?



For what its worth, no shoring is used - but many of the tunnels are 40+ yrs old w/o caving.

Bill

I have property and lots of family exactly where you are talking about. Don't get caught, its illegal to mine on most areas around the Osa. if someone is guiding you in, and telling you that its legal, they are most likely taking your money.