The location of the village had been carefully selected for the rich deposits lying just beneath the surface.
Parts of the former Soviet Union also have rich deposits.
There are also the rich deposits of red, gray, yellow and white clay.
A fossil park is a protected area with rich deposits of fossils.
By 1886, much of the rich deposits that made such an effort worth it were worked out and many miners gave up and moved on.
These were rich deposits, but would be very expensive to develop.
"Not even if you're on the trail of a rich deposit?"
In the 1960s, rich deposits of Bituminous coal were discovered here.
Prior to this, the area's rich deposits in silver and other minerals were known.
In the late 18th century rich deposits of coal were found in the area.