Historically, Tennessee's most important mining products have been iron, bituminous coal, copper, lead, zinc, and phosphate. Iron ore was the most significant during early settlement years. Interest in the iron ore of the Western Highland Rim dates back to the 1790s and even earlier in the eastern mountains.istorically, Tennessee's most important mining products have been iron, bituminous coal, copper, lead, zinc, and phosphate. Iron ore was the most significant during early settlement years. Interest in the iron ore of the Western Highland Rim dates back to the 1790s and even earlier in the eastern mountains.
Answer: Numb Toes Can be Caused by Simple or Serious Problems. Toes go numb from reduced blood circulation or from nerve damage. If your toes feel numb only during sustained walking, then first try to rule out the most obvious cause - your shoes.
Several things may cause numbing in your feet. One cause could be from diabetes. When diabetes is untreated, unrecognized, or undertreated it can cause damage to your nerves. This condition is known as neuropathy. Another cause could come from circulatory problems in your feet. If you are wearing shoes that are too tight, the circulation, or blood flow, to your feet can be decreased. If you have unknown, untreated, or undertreated high blood pressure, this too can cause circulation problems, which could lead to numbness in your feet. If you have any type of decreased flow to or from your feet, numbness in your feet may also arise.