Miner Dave, if your usage of the word "supports" is not meant to imply strictly to timber and steel sets, stulls (otherwise known as props in much of Appalachia), concrete and other manmade supports, then you would be correct. Additional means of support include pillars (ore or coal left in place to support underground workings) and careful mining methods such as filling workings with waste material and the excavation of workings in a shape and manner that more evenly distributes the weight and pressure of the surrounding rock. Hence, some subsidences are attributed to "robbing the pillars", a term used to describe the mining of pillars. After they are removed, the structural integrity of the cavity may fail. If the cavity is too close to the surface, this may eventually result in a subsidence.
Excellent point Chris! Strip mines do prevent forest fires, and when the strip mine is flooded, it can be used as a source of water to extinguish fires!
John, but not all hippies dislike mines. Check out Madrid, an old anthracite coal mining town located along the route of the historic Turquiose Trail in New Mexico. After mining operations shut down, the "counter-culture" moved in. They restored the entire mining town from what was essentially a ghost town, built a coal mining museum, and aptly titled their local dive, the Mine Shaft Tavern. There are a few shops that sell minerals including freshly mined turquoise, and a handful of mining relics can be seen throughout town including a 1900 steam train. Of course there is also an herbal shop, a large art community and other stereotypical indicators of "hippiedom" to be fearful of.

We visited Madrid on our honeymoon and had a great time chatting with the shop owners, tourists, and the locals.