The Great Valley of the U.S. is primarily located in California, extending from the northern part of the state to the southern region. This fertile region is known for its agricultural productivity, producing crops such as fruits, vegetables, and nuts. Bordered by the Sierra Nevada mountains to the east and the Coastal Range to the west, the Great Valley benefits from a Mediterranean climate, providing ideal conditions for farming. The valley also houses significant urban centers, including San Francisco and Los Angeles, contributing to California's status as a major economic force in the U.S.