This cache is one of a 4 cache series named after the Cardinal Directions. This cache is the West Cardinal. It is a letterbox cache and has a unique rubber stamp the pieces together with the stamps from the other 3 caches in this series to produce a single series Letterbox image of a compass. There is a picture of the complete image included in the Gallery for the cache.
To collect the stamped images you will need to bring your own ink pad. One is not included in the cache. There is a logbook and pencil though so that you can sign in.
The other caches are the North, East, and South Cardinals.