Where they are: There are actually two historic markers noting the 45th Parallel. One is on Route 3 in Stewartstown, about 5 miles north of West Stewartstown. The other is at the junction of Route 145 ...
If you pass through the northern New Hampshire town of Stewartstown and Clarksville, you may notice signs informing you that you are standing on the 45 th parallel, the halfway point between the North ...