Hesperia is a city in San Bernardino County

San Bernardino County, California

San Bernardino County is a county in the U.S. state of California. As of the 2010 census, the population was 2,035,210, up from 1,709,434 as of the 2000 census...

, California

California

California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

, United States. It is located in the Mojave Desert

Mojave Desert

The Mojave Desert occupies a significant portion of southeastern California and smaller parts of central California, southern Nevada, southwestern Utah and northwestern Arizona, in the United States...

 15 miles (24 km) north of San Bernardino

San Bernardino

San Bernardino, California is a large city in the Inland Empire Metropolitan Area of Southern California.San Bernardino may also refer to:-Landforms:*San Bernardino , a torrent that flows through the Italian province of Verbano-Cusio-Ossola...

. The locals refer to the surrounding area as the High Desert

High Desert (California)

The High Desert is an unofficial and vaguely-defined geographic area of southern California located to the northeast of the San Gabriel Mountains. The term "High Desert" is used most commonly by the news media, especially in weather forecasts, and in the names of businesses and organizations...

. As of the 2010 census, the city had a population of 90,173, up from 62,582 at the 2000 census.
Hesperia is a city situated within the Mojave Desert

Mojave Desert

The Mojave Desert occupies a significant portion of southeastern California and smaller parts of central California, southern Nevada, southwestern Utah and northwestern Arizona, in the United States...

 which is a Geomorphic Province on volcanic rock with upper soils characterized by light to dark brown silty sand.