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.
Quick links. Online Services. Randall County is located in the south central part of the Texas Panhandle. The County was officially formed in 1889 and consists of approximately 933 square miles with an estimated 783 miles of roads. Randall County is the seat of significant cities, Amarillo and Canyon Texas.