Throughout the territory - in the mountains, along the streams and rivers - thousands of people searched for gold.
VOA: special.2010.04.25
About the size of a golf ball, it is what's known as a habitat specialist, found only in caves of a certain kind of volcanic rock alongstreams in southeastern Puerto Rico.
The woodcutters and gold prospectors may be long gone, but travellers can still relive this fascinating historic era through a series of forest walking trails that evoke the vanished world of the woodcutters, winding beneath the canopy along rust-coloured streams dappled with sun and shadow.