This trail is hidden to help qualify for Periodic Table of Elements Challenge (GC2P5TJ). The challenge requires finding caches named for at least 90% of the known elements. The last 10% can be filled in by hiding caches. This element was placed to replace Rubidium which went missing.
There is parking at various points along the trail (at a church, at a school, on side streets), but you may find it less frustrating to bike the entire paved trail.