OQUOSSOC, Maine — Every morning this week, I’ve woken up to a sea of yellow birch and balsam fir in this northern stretch of the Appalachians. The wind whipping off Mooselookmeguntic Lake stirs millions of leaves with a sound like the ocean. Once darkness falls, the loons arrive, their voices pealing across the water as they dive for chub, golden shiners and small brook trout.