California is the most populous US state with 39 million people, and the third largest state by area 158,706 sq. mi.

California's transportation system is complex and dynamic, known for its car culture and extensive network of freeways and roads. The rapidly growing population of the state is straining all of its transportation networks.

California has 168,076 mi (270,492 km) of public roads, streets, and highways. 20 huge cities and small towns waiting to be explored, including Los Angeles, Oakland, San Francisco and others. Drive the varied set of roads - from narrow ones to the Pacific Coast Highway, known as State Route 1 it runs north/south quite literally hugging the coastline for the most part.

Pass multiple landmarks including scenic places, well know bridges and historical buildings. Explore the geographic diversity - from the Sierra Nevada mountains to the Pacific Coast, from fir forests to the desert.

Nevada (Spanish for "snow covered") is the 7th most extensive (110,561 sq. mi), the 35th most populous (2,890,845 people), and the 9th least densely populated of the 50 United States. The economy of Nevada is tied to tourism (especially entertainment and gambling related), mining and cattle ranching. Nevada was founded on mining and re-founded on sin - beginning with prizefighting and easy divorce a century ago and later extending to gaming and prostitution.

There are 37,854 miles of public roads and streets in Nevada. The major highways, I-80 and I-15, link Salt Lake City with Reno and Las Vegas, respectively. Discover the Silver State with its 10 biggest urban centers Las Vegas, Carson City and Reno. Cross The Strip - the famous row of casinos in the fabulous city of Las Vegas. Drive through the colorful desert to the distant horizon. Feel the serene, open and peaceful scenery with hillbilly trailer parks and rolling tumbleweeds.

Arizona (Navajo: Hoozdo Hahoodzo) is the sixth largest and the 14th most populous of the 50 states. Southern Arizona is known for its desert climate, with very hot summers and mild winters. Northern Arizona features many pine forests, the Colorado Plateau, and some mountain ranges with much more moderate summer temperatures and significant winter snowfalls.

Arizona is full of nature - the Flagstaff, Alpine, and Tucson areas are known for their ski resorts. There are national monuments, forests and parks in addition to the Grand Canyon National Park. On top of all that a large portion of the state is made up of Native American reservations.

Urban areas are served by a network of state routes and highways. The backbone of the Arizona transportation system is represented by the main interstate routes. This includes I-17 in the north-south and I-19 which leads to the Mexican border. East-west main routes are covered by I-8, I-10, and I-40.