Cache is a small plastic tube attached to a magnet. The snow might bury this tiny sign post, but cache is on the sign.
When I was visiting Wisconsin I found a pair of caches from the HHAA, Hydrant series placed by HudsonHotAirAffair. I had a thought back then that if I ever hid caches I should have some Haha Hydrant caches of my own. Cache will be a quick and easy find.