Route 3 between I-93 & Route 302 (Mile 12-23) :
Natural & Historic Points of Interest: Mt Cleveland Overlook.
At Exit 35 (12.5), bear right on Route 3N. If you've brought your bicycles, parking for the Franconia Notch bike path is on the right (13.6); the path runs 9 miles to the Flume and back. Just up the road is the Mt. Cleveland Overlook (16.9) and the turnoff onto Trudeau Road (18.1) where you can visit the Ammonooosuc Ranger Station, an excellent source of information about the 800,000 acre White Mountain National Forest. The entire loop of the White Mountains Trail runs through or close to the Forest. Continuing on Route 3, the Trail passes Beaver Brook Rest Area (19.1) and through the village of Twin Mountain (22.0) which, along with Bretton Woods, Fabyan and Marshfield, comprise the town of Carroll. At the traffic light (23.4), turn right onto Route 302E. The next few miles take you past trailheads and a legendary grand hotel.
Route 302 thru Bretton Woods(Mile 24-33) :
Natural & Historic Points of Interest: Mount Washington Hotel, Mt Washington Cog Railway.
You'll first encounter the entrance to the Zealand Campground and trailhead (25.6); the Lower Falls of the Ammonoosuc River (access parking, 25.8); a major moose wallow (26.6, on the right; and the Cherry Mountain Road (26.9).
The Twin Mountain and Bretton Woods area was first settled by Abel Crawford in 1792. Abel and son Ethan built the Notch House, which signaled the beginning of the hotel era. Abel Crawford, "the father of White Mountains tourism," also was responsible for building the first path to the summit of Mt. Washington, which is still in use today.
Just off Route 302 in Bretton Woods is the Mt. Washington Cog Railway (base road entrance 27.8), the world's first mountain climbing cog railway. When the Cog Railway was first proposed, the New Hampshire legislature was so doubtful that it could be completed that they gave the builder the right to build the "railway to the moon"! Today you can ride the Cog to the summit of 6288 foot Mt Washington, as well as see the Old Peppersass, the world's first mountain climbing locomotive which reached the summit on July 3, 1869.
What Abel Crawford began, the tradition of hospitality, culminated in the building of one of the grandest hotels of all, the Mount Washington Hotel (28.6), in 1902. It, too, has its place in history: 1944 the World Monetary Conference met there and the gold standard was established with the US dollar chosen as the backbone to international exchange.