Silurian Sangerville Formation Anasagunticook member
Devonian Littleton Formation
Ordovician - Cambrian Dead River formation lower member
Devonian granite (muscovite accessory mineral), tonalite
Devonian Carrabassett Formation
Silurian Smalls Falls Formation
Devonian pyroxene-hornblende quartz monzodiorite and quartz diorite - pyroxene-hornblende-biotite quartz monzodiorite, and pyroxene-hornblende-biotite quartz diorite
Silurian Sangerville Formation Patch Mountain member
Silurian Rangeley formation
Cambrian Hurricane Mountain Formation
Devonian - Silurian Madrid Formation
Silurian Perry Mountain formation
Ordovician biotite granite
Ordovician - Cambrian Aziscohos Formation
Devonian - Silurian Rindgemere Formation lower member
Cambrian Jim Pond Formation graywacke
Ordovician - Cambrian Dead River formation
Devonian Seboomook Formation
Devonian Seboomook Formation Day Mountain member
Ordovician Ammonoosuc Volcanics
Devonian Seboomook Formation Temple Stream member
Devonian Hildreths Formation
Silurian Sangerville Formation
Silurian Sangerville Formation Anasagunticook member limestone
Devonian Seboomook Formation Mount Blue member
Devonian Ironbound Mountain Formation
Devonian - Cambrian unnamed sedimentary rocks
Ordovician - Cambrian Dead River formation upper member
Ordovician unnamed volcanic and sedimentary rocks
Silurian Smalls Falls Formation?
Ordovician unnamed mafic volcanic rocks
Devonian - Silurian undifferentiated sedimentary rocks in areas of extreme migmatization
Silurian Rangeley Formation ""C"" member
Ordovician biotite granite and granodiorite
Devonian - Silurian Rindgemere Formation lower member sulfidic pelite
Ordovician Quimby formation
Mesozoic biotite foid-bearing syenite
Ordovician - Cambrian unnamed volcanic rocks
Silurian Rangeley Formation ""A"" member lithic sandstone
Silurian Rangeley Formation ""B"" member""
Silurian unnamed limestone
Ordovician Kamankeag Formation pelite member
Cretaceous alkali feldspar-biotite quartz syenite
Ordovician Kamankeag Formation basalt and graywacke member
Jurassic granite - Jurassic biotite granite undivided
Devonian gabbro/diorite/ultramafic rocks
Silurian Rangeley Formation ""A"" member
Silurian Greenvale Cove Formation
Muscovite-biotite granite undivided
Devonian gabbro - ultramafic rocks
Silurian Sangerville Formation Anasagunticook member sulfidic pelite
Precambrian gneisses of the Chain Lakes Massif
Cretaceous mafic to felsic volcanic rocks
Cambrian unnamed mafic volcanic rocks
Cretaceous alkali feldspar-biotite syenite
Cambrian Jim Pond Formation mafic volcanic rocks
Devonian Carrabassett Formation (uncertain)
Gray metapelite and metawacke and subordinate metavolcanic rocks; generally, but not everywhere, conformable with underlying Fitch or Madrid Formations. Fossiliferous in western New Hampshire.
Ordovician gabbro/diorite/ultramafic rocks
Cambrian ultramafic rocks
Mesozoic alkali feldspar-biotite syenite
Silurian - Ordovician Frontenac Formation
Pink, moderately to weakly foliated.
Madrid and Smalls Falls Formations, undivided.
Formations unidentifiable owing to obliteration of original sedimentary or volcanic characteristics by anatexis or by numerous intrusions.
Two-mica granite of the Sebago batholith and Effingham pluton of eastern New Hampshire.
Quartz-pebble conglomerate overlain by rusty metapelite and feldspathic quartzite.
Biotite quartz diorite in northeastern New Hampshire
Massive to weakly foliated, purple biotite-feldspar granofels, layered calc-silicate, and dark pelitic-sulfidic schist containing calc-silicate pods in upper member; an eastern facies equivalent to the upper part of the Fitch Formation. Locally mapped as the Warner Formation of Nielson (1981) in southern New Hampshire.
Mesozoic mafic to felsic volcanic rocks
Sharply interbedded quartzites, light-gray nongraphitic metapelite, and "fast-graded" meta-turbidites. Coticule layers common.
Rangeley Formation, undivided.
Ammonoosuc Volcanics, Volcaniclastic metagraywackes.
Very rusty weathering, thinly bedded sulfidic-graphitic schist and pyrrhotitic calc-silicate granofels. Eastern facies equivalent to lower part of the Fitch Formation. Locally mapped as Francestown Formation of Nielson (1981) in southern New Hampshire.
Ammonoosuc Volcanics, Bimodal volcanic rocks - Locally includes unmapped Oals.
Cambrian gabbro/diorite/ultramafic rocks
Ammonoosuc Volcanics, Metabasalt.
Thinly laminated, "pin-striped" gray, green, or tan metapelite and quartzite.