Route 210 is a state highway located in the state of California. It runs through the San Gabriel Valley, connecting the cities of Pasadena and Glendora. The route is approximately 12 miles long and serves as a vital transportation corridor for local residents and commuters. The highway is known for its scenic views, particularly as it passes through the foothills of the San Gabriel Mountains. Along its path, Route 210 intersects with several major roads, providing access to various neighborhoods, shopping areas, and recreational spots in the region.