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.
Dealing With Occasional Numbness. 1  1. Get moving. Often numbness in the feet or toes occurs when you have been sitting or standing in one place for a long time. 2  2. Change positions. Numbness is often triggered by seating positions that pinch the nerves in your legs and/or feet. 3  3. Remove excessively tight clothing.