Container is not at posted coordinates. That's the trailhead for the trail you want to take. There is parking across the street. This is Silver Mine Park which is open sunrise to sundown. No night caching.
The coordinates bounce there quite a bit. The container is perched on the top of a log. I stepped over a large log on the south side of the trail to get to the right area.
Determining where it is will require a little Metal Math. You may use paper and pencil if needed. I needed to write it down. By the way, a travel bug won't fit inside, but the outer container is a small.
In researching the puzzle, I considered what does it mean to be a "metal". Many metals are shiny. They often are good electrical conductors. They are often ductile in that they can be pulled into wires, but that reminded me of licorice and taffy. The puzzle refers to elemental metals.
The container is at
North Li * Al Fe + Zn . (Cu * Ni) - (Ag + Ti)
West Ca + Ba K . (Pb + U + Hg + Au + W + Ir + Na + Sn + V) / Be
Congratulations to NoBlueCircles and the youngest little circle on the FTF.