From Wikipedia:
Pi is a mathematical constant whose value is the ratio
of any circle's circumference to its diameter in Euclidean space;
this is the same value as the ratio of a circle's area to the
square of its radius. It is approximately equal to 3.141593 in the
usual decimal notation (see the table for its representation in
some other bases). The constant is also known as Archimedes
Constant, although this name is rather uncommon in modern, western,
English-speaking contexts. Many formulae from mathematics, science,
and engineering involve pi, which is one of the most important
mathematical and physical constants.
Your job will to be compute the digits of pi (or look them up
online) to get the final coordinates for the cache. The latitude
may be found starting at decimal place 867,739. The longitude may
be found starting at decimal place 185,811. The solution to the
puzzle will take you to an intersection where you'll have to look
around for the cache!
You can check your answers for this puzzle on
Geochecker.com