Then I would suggest "length" is what you mean here, as it has no direct
relation with the distance from the surface.
On 2017-05-12 09:54, Michal Fabík wrote:
> On Fri, May 12, 2017 at 9:32 AM, Colin Smale <colin.sm...@xs4all.nl> wrote:
>
>> B) the distance one would have to travel to reach the end of the adit
>
> This. Any straight-line distance can be determined reasonably easily from a
> map, using its scale and a piece of string. A length of a twisty path, not so
> much. Granted, adits aren't usually _that_ twisty, but entering a mine is
> always a potentially hazardous undertaking and it's important to have as much
> useful information at hand as possible.
> --
> Michal Fabík
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