Originally Posted By: tanstaafl.
Elevation numbers created by something with more precision and repeatability than a hand-held GPS unit.


To achieve that, you would need:

- Certainty that someone, sometime, has done an accurate survey of the area in question. If the area is remote, I'm betting that's unlikely.

- Knowledge of where to retrieve the data from that survey.

Google Maps is not likely the source of data you're looking for. My guess is that the data you're looking for isn't publicly available at all. Your handheld GPS might be the best data you've got access to right now.

Hm. I wonder how much used surveying equipment is on Ebay? smile
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Tony Fabris