Along The River Campground Share: Lodging & TravelCampgrounds Along The River Campground Visit Website 373 Route 302 West Twin Mountain, NH 03595 (603) 846-1026 Facebook Hours: 9am - 7pm in season, phones on during off season, online booking on year round About Map About Pet friendly, clean campground on the beautiful Ammonoosuc River. Inground pool, close to hiking & area attractions. 6 miles to The Cog road and Omni Mt. Washington Resort. What's Nearby? Distance: 5 10 15 20 25 50 mi.