In Sept 2009 a team of six of us visited the Gros Morne National Park to hike the rugged Long Range Traverse. See this link for a story of our hike.
Reaching 800 metres out of the bogs along the Gulf of St Lawrence, the ancient Long Range Mountains mark the northern end of the Appalachian mountain range. The arctic-alpine bogs and barrens are home to caribou, moose, arctic hare, and black bear.
The Long Range Mountains provides hikers with some of the most scenic and challenging hiking terrain in eastern North America. Hiking in the Long Range Mountains is physically and mentally challenging. It is remote, strenuous, and potentially hazardous. There are no built trails on the Long Range although there are a number of suggested backcountry routes. These routes are not marked with signs or maintained in any manner. Hikers need backcountry travel experience, be self-reliant, and proficient using maps, compass, and GPS to navigate unfamiliar wilderness terrain.
More information can be found on the Parks Canada website at this link.
Click on this YouTube link to get a good idea what this hike is like. This excellent video with a haunting musical accompaniment was made by a couple who did the hike shortly after we did.