Locality	Layer
	USA, Alaska, Brooks Range, Anaktuvuk River, W side of, 11764	black chert in Alapah Lst.
	USA, Alaska, Brooks Range, Etivluk River Valley, 11828	black chert in Alapah Lst.
	USA, Alaska, Brooks Range, Kanaktuk Lake, Anaktuvuk Valley, 12084	black chert in Alapah Lst.
	USA, Alaska, Brooks Range, Kiligwa River, E fork of, 13204	black chert in Alapah Lst.
	USA, Alaska, Brooks Range, Kiligwa River, W fork of, 14153	black chert in Alapah Lst.
	USA, Alaska, Brooks Range, Kiruktagiak River, 13mls SW junct.,10864	black chert in Alapah Lst.
	USA, Alaska, Brooks Range, Kiruktagiak River,9.5mls SW junct.,10864	black chert in Alapah Lst.
	USA, Alaska, Brooks Range, Lisbourne Ridge, 2 mls S of, 11818	black chert in Alapah Lst.
	USA, Alaska, Brooks Range, Monotis Creek, 12870	black chert in Alapah Lst.
	USA, Alaska, Brooks Range, Nuka River, N bank of, 12787	black chert in Alapah Lst.
	USA, Alaska, Brooks Range, Wewok, 3 mls SE of, 3586	upper part of black Shale in Alapah Lst.