We carry control underground, set line and grade at the heading and scan the excavated profile, because GNSS can't follow. One decline we survey is now approaching 4,000 feet and still advancing.
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On an exploration mine decline in the Sierra foothills, we set line and grade for the contractor's guidance lasers.
We scan the excavated profile and deliver updated as-built drawings as the decline advances. The decline is now approaching 4,000 feet.
On the surface, we did a boundary survey of several hundred acres of private and BLM land. We also mapped the topography of the ground above.
Boundary survey of several hundred acres of private and BLM land and topographic mapping of the ground above. Underground, we set line and grade for the contractor's guidance lasers and deliver updated as-built drawings as the decline advances. It is now approaching 4,000 feet.
