Geocache is not at the posted coordinates!!! But its a good place to start.
A nice walk on a paved trail in Piszek Preserve. There is a dangerous street crossing to get from parking to the cache location. The trail can be slightly flooded after a big rain.
At the listed coords you will find a mathematical expression. Using that expression you can compute the final coords as follows:
x = ABS(mathematical expression)
North = 7x-16
West = 10x+17
Please return the cache as found.