All patterns are plowed on contours which are reset every 200 feet. The device shown here is an optical transit. We now use a laser transit which can be operated by one person and which is much faster.
Valentine Artist Boyd Elder Sets a Contour
All patterns are plowed on contours which are reset every 200 feet. The device shown here is an optical transit. We now use a laser transit which can be operated by one person and which is much faster.