What created California's major landforms?

Answer 1

The Colorado River formed the southeastern portion of the state of California. It was initially inhabited by over 70, individual indigenous tribes. The first European settlement Sir Francis Drake claimed a portion of California for England in 1576, 37 years after a Spanish expedition led by Juan Rodriguez Cabrillo first discovered the coast. Between 1769 and 1770, the first missions were established.

Answer 2

Three major forces created California's landforms:

1. tectonic plates
2. fault lines
3. erosion, both from mountain runoff and action of ocean waves.