 These rocks date to 1106.0±5.1 Ma, placing them in the middle of the Stenian period of the Mesoproterozoic era.The Misquahs are geological cousins of the Adirondacks and the Laurentian Mountains of Quebec; they bear some visual resemblance to these ranges, though on a smaller scale.The Misquah Hills are thickly forested, though there are granite outcrops and exposed bedrock in many places.