Sapphires are found in several gulches, especially on Yogo Creek, 16 m.
The ordinary process before 1906 was to dam small streams and " coulees "(deep gulches in which water flows intermittently) and flood the surrounding country.
The surrounding country is one of the prettiest and most fertile regions in Cuba, varied with woods, rivers, rocky gulches, beautiful cascades and charming tropic vegetation.
The kukui grows along streams and gulches; from its nuts, which are very oily, the natives used to make candles, and it is still frequently called the candlenut tree.
All the " gulches " or ravines leading down into the canyons were also worked over, with or without water.