R.18E. and in roadcuts along County UU in the NW NW sec. 13 and NW NW sec. Allanite occurs as tiny altered grains in gneisses, granodioirte and other rocks in the Mountain area. Allanite is an accessory in the Red River Adamellite such as exposed in a pit near the center of Sec. 15 T.26N R.12E have been tentatively identified as allanite.
Associated minerals are beryl, gadolinite, K-feldspar and chlorite.