Ogh
Georgetown Intrusive Suite (Early Ordovician) Biotite-hornblende tonalite
Ogl
Granite (Ordovician (?))
Ok
Kensington Tonalite (Middle Ordovician)
CZa
Metavolcanic and meta-igneous rocks of uncertain origin (Lower Cambrian and Neoproterozoic) Amphibolite
CZg
Metavolcanic and meta-igneous rocks of uncertain origin (Lower Cambrian and Neoproterozoic) Metagabbro and metapyroxenite
Ogg
Georgetown Intrusive Suite (Early Ordovician) Quartz gabbro
Ogr
Georgetown Intrusive Suite (Early Ordovician) Garnetiferous biotite-hornblende tonalite
Pzq
Vein Quartz bodies (Paleozoic)
Ogb
Georgetown Intrusive Suite (Early Ordovician) Biotite tonalite
Cl
Laurel Formation (Lower Cambrian)