The GPS is still going to be a rough estimate, though better than eyeballing. Depending on how many satalites the unit is able to see the readings can be off as much as 80'.
Couldn't you simply measure the parameter & do the math?
Looks like a great place for a pond! I'm envious.
Have you stocked it yet?

Pond Boss Subscriber & Books Owner


If you can read this ... thank a teacher. Since it's in english ... thank our military!
Ric