@geeoddmike Thank you, very informative and useful

@geeoddmike Thanks for the detailed image and the documents linked. I will work my way through them, but I have to recognize I struggle now with all t...

@geeoddmike Thanks a lot it is very helpful. I don't know much about surveying, for example, the meaning of this: Accuracy (per double km run) ?ñ1...

Thank you everybody for the replies, it was very helpful ???? .

@bill93 Yes, we only need relative elevations but speed and ease of training would be nice to have. Any particular equipment you could point to/recom...

@john-hamilton What would be the rough cost of equipment and subscription?

Honestly? Nobody doing the work is a surveyor? Conventional level runs. Decidedly low tech, easy to learn, no whiz-bang flashy light electronics to ra...