"State Route 25 is a state highway in the U.S. state of California between Gilroy and State Route 198," according to Wikipedia.
"SR 25 (also known as Bolsa Road and the Airline Highway) begins at the intersection of Peach Tree Road and State Route 198 about 11 miles west of Priest Valley, in Monterey County, and is the northern extension of Peach Tree Road. It heads northwest, crossing into San Benito County and passing through the community of Bitterwater.
"SR 25 provides access to the Pinnacles National Park east entrance, running parallel to the San Andreas Fault. Running parallel to the Gabilan Range and Diablo Range, SR 25 passes through the communities of Paicines and Tres Pinos and the city of Hollister.
SR 25 continues northwest from Hollister, intersecting with State Route 156, and ends at U.S. Route 101 in Gilroy."
Known as the Airline Highway, Wikipedia said it got its nickname from pilots: "One story of where the highway got its name is that before the advent of radio navigation, airline pilots flying north-south routes between San Francisco and Los Angeles would use this highway as a visual aid to confirm that they were on the correct route."
Keywords:Airline Highway, Central California, Glenn Franco Simmons, San Benito County, State Route 25