The San Bernadino office sits at the bottom of the San Bernadino National Forest and Strawberry Peak. the original building was built in 1925 and the "new" Toll Addition was added in 1954. The CO had L-1 coax in 1941. Many of the microwave horns shoot to Strawberry Peak, and the San Bernadino-Strawberry Peak was a heavily trafficked route to get radio traffic over the hump and into the high desert.