history of supporting unionization), and environmental protection (leading numerous tree-planting campaigns and fighting against environmental destruction in the Sierra Nevada). The Sacramento Union, the Sacramento Bees rival, started publishing six years earlier, in 1851; it closed its doors in 1994, with an attempted revival lasting from 2005 to 2009. Writer and journalist Mark Twain wrote for the Union in 1866. Other newspapers Sacramento Business Journal Sacramento News & Review The Sacramento Observer Transportation A 2011 study by Walk Score ranked Sacramento the 24th most walkable of the fifty largest U.S. cities. Roads Sacramento is a control city and the region is served by several highways and freeways. Interstate 80 (I-80) is the major east–west route, connecting Sacramento with San Francisco in the west, and Reno in the east. Business 80 (the Capital City Freeway) splits from I-80 in West Sacramento, runs through Sacramento, and then rejoins its parent in the northwest portion of the city. U.S. Highway 50 also begins its eastern journey in West Sacramento, co-signed with Business 80, but then splits off and heads toward South Lake Tahoe as the El Dorado Freeway. A sign at the eastern terminus of US 50 in Ocean City, Maryland, gives the distance to Sacramento as . Interstate 5 (I-5) runs through Sacramento, heads north up to Redding, and then heads south near the western edge of the California Central Valley towards Los Angeles. California State Highway 99 runs through Sacramento, heading closer to the eastern edge of the Central Valley, connecting to Marysville and Yuba City in the north, and Fresno and Bakersfield in the south. California State Highway 160 approaches the city after running along the Sacramento River from Contra Costa County in the south and then becomes a major city street in Downtown Sacramento before turning into the North Sacramento Freeway, going over the American River to Business 80. Some Sacramento neighborhoods, such as Downtown Sacramento and Midtown Sacramento are very bicycle friendly as are many other communities in the region. As a result of litigation, Sacramento has undertaken to make all city facilities and sidewalks wheelchair accessible. In an effort to preserve its urban neighborhoods, Sacramento has constructed traffic-calming measures in many areas. Rail service Amtrak provides passenger rail service to the city of Sacramento. The Sacramento Valley Rail Station is on the corner of 5th and I streets near the historic Old Town Sacramento and underwent extensive