page_title: California County Routes in zone S
section_title: S2
hierarchical_section_title: California County Routes in zone S / S2
caption_attribution_description: English: San Felipe Rd. (County Highway S2) in San Diego, California, just north of State Highway 78. Public domain image.
context_page_description: There are 34 routes assigned to the "S" zone of the California Route Marker Program, which designates county routes in California. The "S" zone includes county highways in Imperial, Orange, Riverside, San Diego, and Santa Barbara counties.
context_section_description: County Route S2 (CR S2) is a county highway in the US state of California. It runs for 65 miles (105 km), north–south, in Imperial County and San Diego County. S2 is the third longest county route in California and is almost exclusively a two-lane rural road.  It largely follows the route of the former Southern Emigrant Trail and Butterfield Overland Mail.
  Route description
  Starting at mile marker zero, the highway begins at a junction with State Route 79 near the community of Warner Springs. As it descends southeast toward the desert floor it becomes San Felipe Road until it crosses State Route 78 at Scissors Crossing in Shelter Valley (formerly called Earthquake Valley). South of the 78, the name of the highway changes to the Great Southern Overland Stage Route of 1849, then further south, it forks at a remote junction with the historic dirt road to become to Sweeney Pass Road. East of the San Diego/Imperial County Line of this segment is also called Imperial Highway. The highway runs south through an interchange with Interstate 8 then ends at a junction with State Route 98 in Ocotillo, California.
caption: San Felipe Road north of Scissors Crossing
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