Why is "U.S. Route 101 in California" trending?

Wikipedia Overview

U.S. Route 101 (US 101) is a north–south United States Numbered Highway stretching from Los Angeles, California, to Tumwater, Washington. The portion in the state of California is approximately 808 miles (1,300 km), running from the East Los Angeles Interchange to the Oregon state line. The majority of US 101 is overseen and maintained by the California Department of Transportation (Caltrans), except for the Golden Gate Bridge which is privately administered, nor is it officially part of the route despite maps and federal route logs saying otherwise. US 101 is a critical freeway serving the Greater Los Angeles and the San Francisco Bay Area, and acts as a communal backbone in the more rural Central Coast and Redwood Empire. A lengthy section in Southern California even follows an unusual east–west direction. From Santa Barbara to Gilroy, US 101 is a mix of freeway and expressway, while north of Sonoma County, it is a regular two-lane road with pockets of controlled-access configurations. In some more populous areas, US 101 features high-occupancy vehicle (HOV) lanes with time-based restrictions for vehicles that have a minimum of two occupants, and express lanes with a congestion toll scheme. The highway also passes through many important agriculture regions.