Migrated to the United States during the California Gold Rush. Hawaiians
Africans
Asians
Middle Easterners

The Gold Rush was the largest mass migration in U.S. history. In March 1848, there were roughly 157,000 people in the California territory; 150,000 Native Americans, 6,500 of Spanish or Mexican descent known as Californios and fewer than 800 non-native Americans

because there are alot of mountains