I am trying to figure this tea out, too. The package does say in small print at the top of the label that it comes from the Yunnan province.
There is an interesting Wikipedia article on pu-erh.
http://en.wikipedia.org/wiki/Pu-erh_tea
Judging from what I read, I am not sure if this is a high quality pu-erh. The color is dark red with 1 min. infusion, though the wikipedia article says "Steeping times last from 12–30 seconds in the first few infusions, up to 2–10 minutes in the last infusions," so maybe I steeped it for too long? The smell is kind of strange but it doesn't taste bad. It would be interesting to compare this with another pu-erh.
In judging quality, the Wikpedia pu-erh article says, "Aged pu-erh [which I think this is] should never smell moldy, musty, or strongly fungal, though some pu-erh drinkers consider these smells to be unoffensive or even enjoyable. The smell of aged pu-erh may vary, with an "aged" but not "stuffy" odour. The taste of aged raw pu-erh or ripe pu-erh should be smooth, with slight hints of bitterness, and lack a biting astringency or any off-sour tastes. The element of taste is an important indicator of aged pu-erh quality, the texture should be rich and thick and should have very distinct gān (甘) and húigān(回甘) on the tongue and cheeks, which together induces salivation and leaves a "feeling" in the back of the throat."
I am not sure that I am experiencing these effects with this particular bag of tea. I might try again with a shorter infusion time.