Firesthill Bridge, located in North Auburn, United States, is a historic stone bridge built in 1834 and the oldest bridge in California. it spans 1,152 feet over the ravines and creeks in the region, and is part of the Old Town Road Historic District. The bridge is a popular tourist attraction due to its unique design — the walls have flattened arches, and the bridge itself is made of limestone and has a unique curved roadway. It is the centerpiece of a small park that includes a picnic area and hiking paths, with views of the surrounding hills and canyons. Visitors can explore the ruins of an old mill on the banks of the creek, as well as an old barn and other historic buildings. On sunny days, the bridge is an excellent spot for photography and sightseeing.