Plum Creek Timber Co. has completed a deal with The Nature Conservancy and the Forest Society of Maine that puts 363,000 acres in Maine’s North Woods into a conservation easement that bans development and limits logging while allowing public access for hunting, snowmobiling, and other recreation. The land near Moosehead Lake is the largest contiguous conservation easement in America, Mike Tetreault, executive director of The Nature Conservancy in Maine, said Tuesday at an event formally announcing completion of the deal.