The next time you're headed to our local Resource Recovery Facility you can trade your trash/recycling/green waste for a smiley. And if you've got more time and energy (and maybe a horse or bicycle) there are several other caches to be found up the trail.
The container is a bit bigger than a typical micro, but still smaller than "small." We saw no poison oak or thorns near the cache, but you may encounter them in the vicinity.