While it is not in South Africa, a Johannesburg is located in this desert which is bordered to the south by the Chocolate, San Bernardino, and San Gabriel Mountains. Military installations within this desert include Fort Irwin and Edwards Air Force Base, and the Salton Sea and Imperial Valley lie to its south. To the north of this desert lie the Sierra Nevada, and it is notable for its Joshua Trees, which have a namesake national park in this desert. For 10 points, name 
While it is not in South Africa, a Johannesburg is located in this desert which is bordered to the south by the Chocolate, San Bernardino, and San Gabriel Mountains. Military installations within this desert include Fort Irwin and Edwards Air Force Base, and the Salton Sea and Imperial Valley lie to its south. To the north of this desert lie the Sierra Nevada, and it is notable for its Joshua Trees, which have a namesake national park in this desert. For 10 points, name this desert located in southeastern California and which contains Death Valley.
While it is not in South Africa, a Johannesburg is located in this desert which is bordered to the south by the Chocolate, San Bernardino, and San Gabriel Mountains.
{Mojave} Desert