Thanks.  I just wasted an hour putting together a Google Map webpage
to show me exactly where I'd end up, given any starting location:

http://www.ubasics.com/dighole/

It shows two maps.  Both are draggable.  The two maps show the
antipodal views of the world - if you start digging down at the
location on the top map, you'll pop out the location on the bottom map
and vice versa

-Adam

On 8/28/06, Alex Harford <harford@gmail.com> wrote:
> http://www.peakbagger.com/pbgeog/worldrev.aspx
>
> >From the page:
>
> Antipodes: The Other Side of the World
>
> There is an informal and anecdotal belief among Americans that if you
> dig a hole deep enough, eventually you would come out in China. This
> is theoretically possible if the hole is angled in the right way, but
> if you dig straight down and through the exact center of the earth
> from anywhere in the 48 contiguous United States, you'd come out in
> the Indian Ocean. Only in parts of Argentina or Chile would a straight
> hole emerge in China.
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