The stratosphere, mesosphere and lowest part of the thermosphere are collectively referred to as the middle atmosphere, which spans heights from approximately 10 kilometres (33,000 ft) to 100 kilometres (62 mi).
Terrell, Texas. Not to be confused with Terrell County, Texas. Terrell is a city in Kaufman County, Texas, United States. As of the 2010 census, the city population was 15,816. Terrell is located 32 miles (51 km) east of Dallas.
Burnet County is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2010 census, the population was 42,750. Its county seat is Burnet. The county was founded in 1852 and later organized in 1854. It is named for David Gouverneur Burnet, the first president of the Republic of Texas. The name of the county is pronounced with the emphasis or accent on the first syllable, just as its namesake David Burnet.