This cache is only just barely steam punk. I have shown it to my little brother who is mildly into steam punk and he believes it has a "steam punky" feel to it. In reality this is kind of a slap gears on it and call it Steam Punk kind of thing but for the first cache in what I hope will be a "series" it works well.
You will be looking for a wren house type birdhouse. Once you find the cache find the Copper "button" that is the side that opens and inside you will find the log book.
For those who are interested this is made of wood covered with roof flashing that has been painted to make it look like other metals. It is pretty clearly labeled as a Geocache but once you see it you will know you have found what you are looking for.
Now for a few more details
The cache IS NOT a simple parking lot hide. While it is close to a parking lot, and it is where I recommend that you park, the cache will require you to leave the pavement, bushwhack, cross a stream, and bushwhack a little more. This cache is a conspicuous so I wanted to hide it in a pretty out of the way spot. From the parking lot go to the listed "trail head" coordinates and enter the woods on the other side of this little strip of wood is a mowed swath of grass you will walk along this toward the cache. Then cross the "stream", i think it is a seasonal stream but there has been water every time I was there, it is not to hard to get across though if you aren't careful you may get wet. Once across continue to follow the swath until you are perpendicular to the cache go in and go to the coordinates... I went back several times and every time I could not get better than 30' of accuracy so I welcome more coordinates. If you have any problems please let me know.
*- from Wikipedia