A blast furnace is a special type of furnace. They are used to make iron from ore. Blast furnaces are very large. They can be up to 60 metres (200 ft) tall and 15 metres (49 ft) in diameter.
Jonesborough, Tennessee. Jonesborough (historically also Jonesboro) is a town in, and the county seat of, Washington County, Tennessee, in the southeastern United States. The population was 5,975 at the 2010 census. It is Tennessee's oldest town.
Jonesboro is located in Coryell County, TX. The population is NR. There are 1 public schools in Jonesboro with an average Homefacts rating of D+. The total crime rate for Jonesboro is moderate, and there are 5 registered sex offenders residing in the city.