Staff uses an autolevel to determine the elevation of a series of benchmarks. An autolevel a piece of surveying equipment that is essentially a telescope. You can see a staff member holding a stadia rod (giant rule) in the trees.
Staff uses an autolevel to determine the elevation of a series of benchmarks. An autolevel a piece of surveying equipment that is essentially a telescope. You can see a staff member holding a stadia rod (giant rule) in the trees.
Staff uses an autolevel to determine the elevation of a series of benchmarks. An autolevel a piece of surveying equipment that is essentially a telescope. You can see a staff member holding a stadia rod (giant rule) in the trees.