Texan brown coal mining
|
|
Machine guidance systems boost Texan coal Mine |
|
|
|
|
(Reporter 45, Sept 2000) Thanks to a new GPS-based machine guidance system supplied by Leica Geosystems, The North American Coal Corporation has achieved significant savings in annual operating costs at its San Miguel Lignite Mine in South Texas.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
