Tonopah Desert Tonopah Desert The Tonopah Desert is a small desert plains region of the Sonoran Desert, located west of Phoenix, Arizona. It is adjacent north of Interstate 10 and lies at the southwest intersection of the Hassayampa River with the Gila River. The Tonopah Desert is also just north of the Gila Bend Mountains massif which create the Gila Bend of the river. The Tonopah Desert is adjacent northwest of the small Palo Verde Hills on Centennial Wash. The Tonopah Desert is mostly east-west trending, small, approximately 30 mi long, and lies at the plains of low elevation mountains north; the
Escalante Desert Escalante Desert The Escalante Desert is a geographic Great Basin region and arid desert ecoregion, in the Deserts and xeric shrublands Biome, located in southwestern Utah. The Escalante Desert is northwest of Cedar City in Iron County, Utah, and extends into part of Millard County. The region spans most of Iron County, which annually has rainfall and snowfall. The Escalante region also lies primarily between State Route 56 and Route 21, as well as north and west of Interstate 15. From the Escalante Desert region's peripheral ridges, the elevation slowly declines to Lund Flats (), which has railroad tracks between