Drive over the Goudney Dam then hike through the spillway which directs overflow from the Goudney Reservoir.
This geocaching experience brings you to a site that controls waterflow in the Swan Lake watershed region. The property containing the dam, reservior and spillway are all crown land and marked out with large stakes so you may park, hike and explore. The cache is an easy find, look for a medium sized jar covered in camo tape.