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.
Terrell Unit. The Charles T. Terrell Unit is a Texas Department of Criminal Justice prison located in unincorporated Brazoria County, Texas. The facility is located on Farm to Market Road 655, 4 miles (6.4 km) west of Farm to Market Road 521. The prison, has about 16,369 acres (6,624 ha) of land, is co-located with Ramsey Unit and Stringfellow Unit.