What causes earthquakes? Earth's crust ranges from 3 to 45 miles deep (5 to 70 kilometers). The crust is a thin, hard shell that floats on the denser, hotter rock of the mantle.
Sponsored Topics. Airway Heights is a city in Spokane County, Washington, United States, just west of Spokane. The population was 6,114 at the 2010 census. The city's name was taken from its close proximity to Fairchild Air Force Base and Spokane International Airport. Airway Heights was officially incorporated on June 28, 1955.
1550 Acres Bellevue, Blaine County, Idaho $11,950,000. Only 10 minutes to the airport in Hailey, this stunning 1,550-acre operating and recreational ranch is easily accessible to the year-round resort amenities of Sun Valley, yet it instills a sense of being a world away.