Final answer:
Owens Valley is recognized as the dustiest place in the United States, mainly due to the drying of Owens Lake caused by extensive water diversion.
Step-by-step explanation:
The Owens Valley holds the distinction of being the dustiest place in the United States. This is due to the significant drying of Owens Lake, which was primarily caused by water diversion starting in the early 20th century to supply the city of Los Angeles. Although Death Valley, another location in California, is noted for being one of the hottest places on Earth and extremely arid, the question specifically refers to Owens Valley, which is more renowned for its dusty conditions.