2 entries match your criteria. Related Historical Markers By Craig Baker, June 29, 2018 The Ridge Route Marker SHOWN IN SOURCE-SPECIFIED ORDER1► California (Los Angeles County), Gorman — The “Ridge Route” — California Historic Civil Engineering Landmark — Constructed 1914-1915 — Near Vista Del Lago Road at Interstate 5. 2► California (Los Angeles County), Gorman — The Old Ridge Route — On Ridge Route Road at Pine Canyon Road, on the right when traveling south on Ridge Route Road.
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