California has a diverse geography and climate that helped support many native tribes with different livelihoods. It contains several major harbors and the highest mountain in the continental US. The film industry was drawn to California in the early 1900s due to the reliable weather and its distance from legal battles in the East. Throughout the 20th century, California witnessed the rise of new entertainment media and saw large waves of immigration that shaped its population growth. Major water projects in the late 19th/early 20th century helped develop agriculture and supported the rapid population growth, establishing Southern California as a destination for many newcomers.