THE BOUNDARY MOUNTAINS – From the large water impoundment dam at Second Connecticut Lake to the Canadian border, the Cohos Trail swings through moose country that is boreal forest, full of spruce and fir spires and copious wildlife. New Hampshire’s last primitive campground, Deer Mountain Campground, is a terrific overnight spot, particularly if you can get Site #28 on Moose Flowage backwater, with its 180 degree vista. The campground resides below big Deer Mountain with its newly restored trail up to the old superstructure of an abandoned fire tower. A side visit to the boat landing at Second Connecticut Lake (the gem of New Hampshire) can’t be passed up. The vista is exceptional. Finally, climb steeply up to the very source of the mighty Connecticut River, a tiny two-acre fen in a hollow right on the Canadian border. It’s trail’s end.