Elevation at center:
Drg Source Scale:
One of Massachusetts's best trails, Boulder Loop is located near Swansea, MA. Trails' printable online topo maps offer shaded and un-shaded reliefs, and aerial photos too. Use topographic maps to find elevation, print high resolution maps, save a PNG, or just learn the topography around Boulder Loop. You can also get free latitude and longitude coordinates from the topographical map and set your GPS. Premium members can download or print any topo and cover more terrain when you map your Boulder Loop route ahead of time.