Cajon Summit
Elevation 4,300 ft (1,311 m).
Cajon Summit, was a small roadside community at the crest of Cajon Pass near the point where today's Interstate 15 reaches its highest elevation in the pass.
At roughly 4,260 to 4,300 feet, it emerged in the early automobile era as travel increased along the National Old Trails Road and later Route 66. Its position made it an important stopping place. For southbound travelers, it was the last stop before descending toward the San Bernardino Valley. For northbound motorists, it marked the end of the long climb and the gateway into the Mojave Desert. That setting gave Cajon Summit a practical role that attracted gas stations, repair shops, cafes, and small motels serving drivers, truckers, and tourists. The summit community was part of the highway world rather than a true railroad settlement, and during the peak Route 66 years it became a familiar landmark for motorists crossing the pass. After Interstate 15 accelerated travel through the corridor, the older roadside businesses faded, and the small summit community gradually disappeared.
Today, the historic summit stop is remembered mostly through local history and through its modern association with Oak Hills.
