Land Surveying Equipment, Land Surveying, Measurement, Contour Line
https://www.udemy.com/surveying/
Enjoy!
Looks interesting....thanks for unique share +5 Reps!
Reminded me of the old Fry and Laurie Quantity Surveying sketch, which I hadn't seen in years until I googled it just now:
https://www.youtube.com/watch?v=FnPy9inVnqg