Indication of location precision

[urien]

Wherever a cave's location co-ordinates or lat/long is given on a web page, add a note such as "Precision: 10km", "Precision: 5 minutes", or whatever, to suit that country's precision requirement.

This is because when precision limits start being applied, a user may not be able to tell whether the figures given are the exact location or some coarse approximation of it. For example,
a cave at: UTM (6 02 814mE, 58 49 489mN), if stored at 10km precision, might be shown as
(6 00 000mE, 58 40 000mN), showing which 10km square it fell into. However a user looking at those figures could not tell whether it was to the nearest metre or not (Even if it ends in 4 zeros, it might still be specifying to the nearest metre).