San Francisco, California, the fourth most populous city in the state. It occupies all of San Francisco County. The city lies on the tip of the San Francisco Peninsula, overlooking the Pacific Ocean on the west, San Francisco Bay on the east, and the Golden Gate (the entrance to the bay) on the north. With a magnificent natural setting and architecturally distinctive buildings, San Francisco is generally regarded as one of the nation's most beautiful cities. It is also a hub of commerce, a cultural and educational center, and a city of diverse nationalities.
Colorado, one of the states in the west-central United States. It is crossed by the snowcapped Rocky Mountains and is sometimes called the “Top of the Nation,” because its mean (average) elevation—6,800 feet (2,073 m)—is the highest of any state.
Nevada, a state in the western United States. It is bounded on the north by Oregon and Idaho, on the east by Utah and Arizona, and on the south and west by California.