I chatted with a game warden yesterday around the Moreland Gap shelter, ~6 miles south of Dennis Cove Rd. He explained to me that he was checking for bear activity in the area, using a sardine can method I was previously unfamiliar with:
What they do is attach (nail?) sardine cans, slightly opened, to tree trunks in several places along the trail. (He assured me that they are not really on the trail, but a safe distance away from foot traffic.) The sardine cans are marked with orange, and I believe he was wearing a GPS device to aid with retrieval. He then comes back after a certain number of days to check for claw and bite marks on and around the sardine cans.
Yesterday (4/24) he found 4 of 11 sardine cans in the Moreland Gap Shelter area had been hit by bears; a low number by his report. In contrast, the warden he was communicating with had 13 of 15 hit in the Iron Mountain area...
Interesting fellow, interesting data collection method. I enjoyed chatting with him.
The next two hikers I saw at the Mountaineer Shelter both had sardines in their food bag - government approved bear-bait.