In Wentworth, NH 25/NH 118 meets the eastern terminus of NH 25A, which connects to the towns of Orford, New Hampshire, and Fairlee, Vermont. Turning gently towards the southeast, NH 25/NH 118 passes by the Plummer's Ledge Natural Area and enters the town of Rumney. NH 118 leaves to the southwest upon entering Rumney, and NH 25 continues southeastward, passing the villages of West Rumney, Rumney Depot, and Quincy. Nearby attractions include Rumney Rocks, a popular rock climbing venue, and Polar Caves Park, a series of glacial caves. Still following the Baker River, NH 25 enters the town of Plymouth, meeting NH 3A at a traffic circle in the village of West Plymouth. 3A merges from the south and the two routes head east along Tenney Mountain Highway. At the northern edge of Plymouth Village, there is a brief freeway interchange where NH 25 east merges with US 3 south, while the roadway continues on a short while before merging with an interchange on I-93 (exit 26). The interchange marks the northern end of NH 3A.