knowing what's under our feet
Within Rosebud's area of operations, coal occurs as horizontal
layers in the earth's crust between various types of other
sedimentary rocks. The nature and distribution of the coal and
other rock types determines the quality, quantity and mineability
of every coal reserve. That's why it is critical for us to
understand the geology of the area we are working.
To do that, Rosebud Mining maintains an extensive collection of
computerized geologic data, including drill hole records,
photographs and analytical data, numerous types of geologic maps
and maps of operating and abandoned mines. We are also constantly
updating our database with new drill hole and analytical records.
Detailed analyses of all this data are used to define potential
reserves, map geologic trends and determine permitting and
Our geologic personnel are also available to assist our active
mining operations. In addition to defining reserve limits and
providing various types of geologic maps to our active operations,
our geologic staff assist with roof and ground stability control,
quality control, safety concerns and other operations.