sentences:  It intersects Durham Regional Road 57, which travels south to Bowmanville.The two routes travels north concurrently with for before Road 57 departs north towards Caesarea as Highway 7A gently curves east and passes through the former railway village of Nestleton Station.Returning to farmland, the highway enters the northern tip of the Oak Ridges Moraine and the terrain begins to undulate near the border between Durham Region and Kawartha Lakes.