Premise: Alta California . Most interior areas such as the Central Valley and the deserts of California remained in de facto possession of indigenous peoples until later in the Mexican era when more inland land grants were made , and especially after 1841 when overland immigrants from the United States began to settle inland areas . California . The western portion of Alta California then was organized as the State of California , and admitted as the 31st state on September 9 , 1850 . San Bernardino County , officially the County of San Bernardino , is a county located in the southern portion of the U.S. state of California .
Hypothesis: There is a desert in California.
Label: ENTAILMENT