What moder-day highway runs along the original El Camino real?

The modern-day highway that runs along the original El Camino Real is California State Route 101. This highway traces much of the route used by the historic trail, which connected the California missions from San Diego to Sonoma. Along its path, Route 101 passes through numerous cities and towns, reflecting the rich history of the region. The route is often marked by bells and signs that commemorate the El Camino Real heritage.