bu
Bedrock
g
Ice fields or glaciers
(g, AN002; Qg, MG002; Qi, PE003)
Water (streams, lakes, ocean)
Qs
Surficial deposits, undifferentiated
Qu, LC002; DI002; TA002; DI005; LC005; MC002; MC00; VA003; CV002; BG003; Qs, IL002; KN002; KN003; KN008; KN009; TA015; GU002; CV003; Q, TA003; TA004; TA005; TA009; TA010; TA011; TA012; LC006; VA002; Qcaf,  IL008; KN011
Tidal flat and estuarine deposits, offshore, subject to inundation
Qtf, KN008
Qad
Avalanche deposits
Qa
Alluvium
Qal, DI002; DI005; IL003; LC005; KN005; KN006; IL007; LC007; MC003; NB004; NB008; NB109; GU101; TA002; MC100; Qal, Qalf, NB108; Qa, DI003; TA015; NB002; GU002; MC004; VA007; IB003; VA004; YA003; GU003; GU004; NB007; Qau, NB002; Qs, KN007; BG002; YA002; M
Qaf
Alluvial fan deposits
Qao
Older alluvial fans
Qafs
Alluvial deposits, Partially submerged alluvial fans and cones
Qc
Colluvium
Qaft
Talus and rubble deposits
Qtr, IL003; Qct, Qpr, KN006
Qcb
Bluff colluvium
Qcb, MC004; GU003; GU004; NB007
Fine-grained colluvial deposits, may be solifluction related?
Qcf, AD012
Qls
Landslide deposits
(Qls, BG002; CB003; CV003; MK002; PE002; PM002; UG003; UG004; Ql, EA002; FB002; MC003; MK002; NB002; SP002; TC002; TL002; Qrs, Qls, KH003; TN002; ls, CG003; NL003; Qcl, MG002)
Qoa
Older alluvium
Qc, GU002; Qao, IB003; BG004; YA003; MC004; LC005; GU003; GU004; NB007; KN008; Qoa, NB004; VA007; GU101; NB108; MC100
Qt
Terrace deposits
Qt, TA015; Qtg, DI005; LC005; KN008; Qts, IL003
Qto
High level, older terrace deposits
Qtg, DI005; Qtgo; LC005; Qt2, TA015
Qac
Abandoned channel deposits
(Qfy, Qfo, KT002; MD002; MZ002; Qab, BD002; FB002; LG002; Qfo, NL003; Qc, GU002; ac, MK003; Qab, DI005; Qac, CG003; CG004; TA015)
Abandoned channel deposits, possibly due to catastrophic draining of a glacial lake.
Ql
Lacustrine deposits
(Ql, CB003; CG004; GU002; KH004; LH002; UG003; UG004; Qfl, MH002; Qfl, Qgl, NB002; Qlc, KH002; Qls; Qfl, TC002; Qls, DI002; DI005; ld, MK003; l, CG003)
Qglf
Glaciolacustrine fan deposits, change to NSA 123
(LC005)
Qsw
Swamp deposits
(Qs, FB002; TC002; Qsp, BD002; Qrs, RM002; Qs, Qsu, LG002; Qsw, DI005; sw, CG003)
Qlv
Levee deposits
Qlv, KN008
Qb
Beach deposits
(Qb, AT002; BG002; BS004; CB003; CG004; CV003; PM002; SR004; TC002; UG003; UG004; Qyb, Qob, BL002; HP002; KW002; Qbl, SC002; Qbs, Qbb, UK002; be, MK003; b; CG003)
Qbe
Beach deposits, elevated beach ridges
Qbe, IL007
Qes
Estuarine deposits
(Qes, CB003; CG004; DI002; DI005; Qe, HP002; MA002; Qf, NR002; es, MK003; Ql, CV003?; es, CG003)
Qmt
Marine and lake terrace deposits
(Qmt, CB003; CG004; PM002; UG003; UG004; Qtg, AD002; mt, CG003; MK003)
Qlt
Lake terrace deposits
Qms
Mineral spring deposits
(Qme, MC004)
Qda
Active dune deposits
(For YK map initially; AR, KT quads)
Qd
Dune deposits
(Qd, BG002; CG004; CV003; LG002; PM002; UK002; Qna, Qns, Qms, KT002; Qms, MD002; MZ002; Qd, Qdr, FB002; Qess, KH002; KH003; TN002; Qdl, KH004; Qe, MG002; NB002; Qds, GU002; Qe, Qd, TC002; Qs, AD002; BD002; BV002; BM002; RB009; SE002; Qs, Qws, SH002; Qw,
Active dunes
Qdi
Inactive dunes
Qds
Sand sheets (sandur)
Qfl
Loess, Fairbanks loess
Qf, FB002; Ql, BD002; BR002; BV002; CI002; CY002; KH003; TN002; Qlc, LG002; Qsw, RM002
Qsu
Frozen silt, undifferentiated
(Qsu, FB002; Qs and Qsu, CI002; Qs, BH004; KH002; KH004; RM002; Qsp, MG002; RM004)
Glacial outwash derived fans deposited in ephermeral glacial lakes
Qglf, LC005; Qd, NB108
Qgl
Glaciolacustrine deposits
Ql, GU002; Qgl, MC004; Qgl, LC005
Qm
Glacial deposits, undivided, of Holocene and/or Pleistocene age
(Qm, BD002; CB003; CG004; CI002; CV003; EA002; KN003; MK002; PM002; SP002; TA015; TN007; Qdt, Qdic, MG002; Qd, RM002; Qt, AT002; BH002; BV002; KH003; RM003; UN002; Qg, BM002; GO002; HG002; LH002; MD002; MZ002; NG002; Qdw, Qda, SH002; Qd, AD002)
Qsg
Superglacial drift
(Qsm, BG002; CV003; MM002; Qsg, CG004; sg, CG003)
Qrg
Rock glacier deposits
Qr, LH002; NB002; SP002; TL002; TC002; Qrg, BG002; KN003; MC003; MG002; RM004; rg, MK003; CG003
Qsf
Solifluction deposits
Qsf, KH002; Qsm, BV002; Qs, MC003
Qek
Esker deposits
Qek, DI005; LC005; Qwfe, GU101
Hnd
Drift, neoglacial
(Qm, UK002; Qm, Qmo, BG002; Qa, TL002; Qam MH002; Qt4, KH003; TN002; Qrm, MM002; Qag, MC003; NB002; Qad, CG004; PM002; UG003; UG004; Qg, TY005; Qgt4, RM004; nd, MK003; Qnd, CB003; ad, CG003)
Hlia
Moraine of Little Ice Age glacial advance
Qgtn, LC007; Qmo, YA002
Hg
Moraine of pre-Little Ice Age glacial advances
Qgt, LC007; IL007; KN005; Qatt, IL003
Qno
Outwash deposits, Neoglaciation
(Qgo, UK002; no, MK003; Qno, CB003; Qoal, MC003; ao, CG003)
Qwu
Drift, undivided, Wisconsin-age Glaciations:  Aleknagik, Brooks Lake, Naptowne, Donnelly
(Qag, Qam, Qamg, Qbg, Qbm, DI002; TA002; Qbl, DI005; Qrm, FB002; Qyg, HU002; Qdtf, MG002; Qwm, MH002; Qom, MM002; Qwg; NB002; Qgt2, Qgt3, RM004; Qg, SM002; Qg3, Qg, Qm3, TA002; Qm, TC002; Qn, TL002; Qk, Knik, TL002, Qt, TN002; Qgo, TY005; Qdm; FB002; Qbl
Qwub
Drift, undivided, Wisconsin-age Glaciations:  Brooks Lake
Qbl, LC005
Qwua
Drift, undivided, Wisconsin-age Glaciations:  Aleknagik, mostly ground and younger drift deposits
Qag, DI002; DI005
Qwun
Drift, undivided, Wisconsin-age Glaciations:  Naptowne
Qn, TL002; Qgn, LC007; KN005; SV004
Qw3
Riley Creek glaciation, also Brooks Lake, Iliuk, late Wisconsin
(Qt3?, TN002; KH003; Qg3, SM002; Qblik, CG004; PM002; UG003; UG004; blik, CG003; MK003; Qrc2, Qblik, CB003)
Qw2
Till, Brooks Lake, Newhalen
(Qt2, TN002; KH003; Qg2, SM002; Qbln, CG004; PM002; UG003; UG004; bln, CG003; MK003; Qrc1, Qbln, CB003)
Qw1
Till, Brooks Lake, Iliamna
(Qt1, TN002; KH003; Qg1, SM002; Qblil, CB003; CG004; PM002; TA015; UG003; UG004; blil, CG003; MK003; Qwg, MC003)
Drift, undivided, Wisconsin-age Glaciations:  Aleknagik
Drift, other than ground moraine, Wisconsin-age Glaciations:  Aleknagik
Qw0
Till, last glacial maximum (LGM)
(Qblk, CB003; CG004; DI005; MK005; PM002; TA015; blk, CG003; MK003)
Till, Brooks Lake, Kvichak
Qog
Glacial deposits of the Okstukuk glaciation
Qog, DI002; TA002; DI005, TA015
Qwo
Outwash deposits, Late Wisconsin-age Glaciations;  Outwash, Riley Creek Glaciation, late Wisconsin
Qdo, BD002; Qao, Qbo, DI002; TA002; Qo3, TA002; Qao, LH002; Qdo, Qdot, MG002; Qwf, MH002; Qw, MM002; Qo, BH004; RM002; Qgf, RM004; Qou, SM002; Qoa, TC002; blo, CG003; MK003; Qblo, CB003; CG004; DI005; PM002; TA015; Qwo, MC003; Qrc, FB002)
Qw3o
Latest Wisconsin outwash deposits
Qw2o
Mid-range Late Wisconsin outwash deposits
Qw1o
Earliest Late Wisconsin outwash deposits
Qbld
Drumlin deposits in ground moraine fields of Brooks Lake glacial deposits
(Qbld, LC005)
Qrd
Rock-defended terraces
(Qb, TN002; KH003)
Qat
Altiplanation terraces
(Qat, TN002; KH002; KH003)
Qdl
Deltaic deposits, including outwash and alluvial deposits
(Qdl, KN008)
Qew
Glaciations of early Wisconsin age:  Mak Hill, Healy, Eklutna, Iowithla
(Qom, Qmm, DI002; TA002; Qga, HU002; SE002; SH002; Qdts, Qdtlm, MG002; Qog, MH002; NB002; Qgt1, RM004; Qg2, TA002; Qmhd, CB003; CG004; PM002; UG003; UG004; mhd, CG003; MK003; Qmh, DI005; FB002; Qe, TL002; Qew, TA015)
Qewm
Glaciations of early Wisconsin age:  Mak Hill
Qmh
Qewi
Glaciations of early Wisconsin age:  Iowithla
Qim, DI002
Qewd
Drumlins associated with early glaciations
(Qewd, DI005)
Qewg
Early Wisconsin ground moraine
(Qog, Qmg, DI002; TA002; Qewg, DI005)
Qmg
Early Wisconsin ground moraine, Mak Hill
Qig
Early Wisconsin ground moraine, Iowithla
Qewo
Older Wisconsin age outwash
(Qho, FB002; Qof, MG002; Qoo, Qmo, DI002; TA002; Qo2, TA002; Qmho, CB003; CG004; UG003; UG004; mho, CG003; Qewo, TA015)
Qmo
Older Wisconsin age outwash, Mak Hill
Qio
Older Wisconsin age outwash, Iowithla
Qmi
Illinoian glaciations
(Qpe, TL002; Qdlm, BD002; Qdm, FB002; Qdtplm, MG002; Qdm, TC002; Qig, Qim, Qug, Qum, DI002; TA002; jhd, CG003; MK003; Qjhd, CG004; UG003; UG004; Qsg, SL002; Qjh, CB003)
Qmio
Outwash older than Wisconsin-age
(Qdo, FB002; Qdlo, BD002; Qof, TC002; Qio, Quo; DI002; TA002; Qjho, CG004; jho, CG003)
Tmp
Pliocene(?) glaciations
(Qty, BG002; Qbm, FB002; Tg, NB002; QTg, MG002; Qom, TC002; Qsb, CB003)
Qfr
Fringing and fossil carbonate reefs
(Qr3, OA003; Qr2, Qr1, MW006)
Qsb
Scoured bedrock
(Qsb, LC005, KN008)
QTs
Surficial deposits, undivided
(ID002; BR002)
QTmb
Semiconsolidated marine beach deposits
(Tc, AD002; QTs, GO002; HG002)
QTg
High-level gravel
(QTg, BV002; KH003; LG002; MD002; TN002;  Tc, TC002)
QTf
Faneto Formation
(AT002)
Qpm
Placer and anthropogenic deposits
(Qp, ID002; Qg, LG002; FB002)
Qv
Volcanic rocks, undivided
(Qnf, Qcc, Qcs, GU002; Qv, Qal, IL002; Qv, Qfp, CB003; Qv, CG002; CG004;KN002; MK002; PM002; TY002; TY005; UG004; LC002; Qya, UL002; Qrq, Qra, Qo, UK002; Qvi, UG002; Qcf, UG100; CG005; vu, CG003)
Qw
Wrangell Lava, younger part
(NB002; Qdf, Qsf, GU002)
Qww
Wrangell Lava, younger part, Wrangell Volcano shield lavas
(Qwws, WRST)
Qwwv
Wrangell Lava, younger part, Wrangell Volcano, valley-fill lavas
(Qwwv, WRST)
Qwd
Wrangell Lava, younger part, Mt. Drum Volcano lava flows
(Qwd, WRST)
Qws
Wrangell Lava, younger part, Mt. Sanford Volcano lava flows
(Qws, WRST)
Qwc
Wrangell Lava, younger part, Capital Volcano shield and intracaldera lavas
(Qwc, WRST)
Qwt
Wrangell Lava, younger part, Mt. Tanada shield and intracaldera lavas
(QTwt, WRST)
Hv
Holocene volcanic rocks
(Hv, Qfvs, CB003; TY005; Qp, TC002; Qby, SC002; Qvf, Qvp, Qvba, Qbo, Qbv, Qrf, Qcd, Qaf5, Qaf, Qbf, Qwf, Qef, Qff, Qc, Qyc, UK002; Tmb, Tyc, AD002; Qkn1, Qmn1, NI003; Qyt, UL002)
Qpd
Pyroclastic (Ash and debris flow) deposits
(Qpd, CB003; CG004; PM002; TY005; UG003; UG004; Qap, IL002; Qrp, Qrv, Qmv, Qep, UK002; Qep, UN002; Toc, AD002; Qad, CG002; afd, CG003)
Qafd
Ash-flow and ash-fall deposits
(Qafd, CB003; Qap, MK004)
Ash-fall deposits
Qptc, AD012
Qdf
Debris-flow deposits
(Qdf, Qvg, CB003; TY005; Qsdf, GU002; Qda, Ql, UG100; df; CG003)
Qdfo
Debris-flow deposits, older Redoubt, still Holocene
Qdfy
Debris-flow deposits, younger Redoubt, late Holocene
Qmf
Mudflow deposits
(Qar, IL002; mf, CG003)
Qav
Volcanic avalanche deposits
(Qav, CB003; Qda, GU002)
Qshc
Hyaloclastite or aquagene tuff
(Qsh, GU002)
Qvs
Bedded volcanic sediments
(Qs, UK002; RI003)
Qcs
Cinder and spatter cones
(Qcs, CB003; CG002; cs, CG003; Qwr, NB002; Qbc, FB002; GU002; Qc, UK002; Tmt, AD002; Qkr1, Qkn2, NI003)
Pit craters and calderas {feature, not really unit}
(Qkp, Qpt, HI002)
Qed
Explosion debris
. (Qp, UG100; CG005)
Qvb
Basalt of Togiak River Valley, or basalt flows
(Qtb, GO002; HG002; KW002; MA002; HP002; HC002; Qbo, SC002; Qmb, Qcb, Qf, UK002; Qel, UN002; Tmc, Tpc, Tls, AD002; Qmr1, Qmn2, Qmn3, NI003; Qb, BC003; BH002; PE002; SL002; QTb, BH004)
Qva
Andesite and low silica dacite
(Qlw, Qlp, Qe, RI003; an, CG003)
Qvda
Dacite and rhyodacite
(Qls, Qd, RI003; da, CG003)
Qvr
Rhyolite
Qvd
Viscous domes in young Hawaiian volcanic rocks, Hawi and Laupahoehoe Volcanic Series
(Qhd, Qld, HI002)
Qgm
Small masses of gabbro in young Hawaiian volcanic rocks, Kahuku Volcanic Series
(Qkhi, HI002)
Qhvu
West Molokai Volcanic Series (upper), Kanapou Volcanic Series (lower), East Molokai, Lanai, Honolua, Wailuku, Honomanu, Plololu, Hamakua, and Ninole Volcanic Series - Early Pleistocene
(Qwu, Qel, Qeu OA003; Ql2, Qho, Qw7, Qh7, MW006; Qpo, Qm, Qn, HI002)
Qwj
Wrangell Lavas, Mt. Jarvis volcanoes shield and intracaldera lavas
(Qwj, WRST)
Qhcu
West Molokai Volcanic Series (upper) and East Molokai, Lanai, Honolua, Honomanu, Kanapou, Pololu, and Hamakua Volcanic Series cinder, spatter, and littoral cones
(Qwuc, Qelc, Qeuc, Qlc2, Qhoc, Qhc7, Qkc4, MW006; Qpoc, Qmc, HI002)
Qhvd
East Molokai Volcanic Series (upper), Honolua Volcanic Series viscous domes
(Qeud, OA003; Qhod, MW006)
Qhgm
West Molokai Volcanic Series (lower) and Wailuku, Kula, Kanapou, and Pololu Volcanic Series, gabbro masses
(Qwli, Qwi, Qki7, Qki4, MW006; Qpoi, HI002)
Qhvl
Koolau and West Molokai (lower) Volcanic Series - Early Pleistocene
(Qk3, Qwl, OA003)
Qhcl
Koolau and West Molokai (lower) Volcanic Series, cinder, spatter, and littoral cones
(Qkc3, Qwlc, OA003)
Qi
Intrusive rocks, undivided
(Qi, CB003; PM002; Qdc, Qsi, GU002)
Qvdr
Dacitic to rhyolitic domes
(Qvd, CB003; Qdd, Qdr, Qsr, Qni, Qcr, GU002; Hvcp, TY005; Qr, UK002; Qad, MK004; dap, CG003)
Qwdr
Wrangell Lavas, Mt. Drum volcano domes, dacite and rhyolite
(Qwdr, WRST)
Qwsr
Wrangell Lavas, Mt. Sanford volcano dome, rhyolite
(Qwsr, WRST)
Qwjd
Wrangell Lavas, Mt. Jarvis volcanoes, dome, dacite
(Qwjd, WRST)
Qanp
Andesite plug domes
(Qva, UK002; Tmtv, Td, AD002; Qld, UG100; anp, CG003)
Radial dike swarm and plug
(Qcd, GU002)
Qbd
Basalt dome
(Tmd, Tpd, Tpv, AD002; Qgd, AD004)
QTv
Quaternary and/or Tertiary volcanic rocks, undifferentiated
(QTm, AT002; UN002; QTm, QTv, QTdv, CB003; QTv, BI002; CG002; CG004; CM002; IL002; KC002; MK002; NI002; PM002; QTv, QTam, QTab, UK002; Tv, TY002; TY005; QTu, GU002; Tav, AD002)
QTa
Andesitic lava
(QTa, KH002, TN002; QTw, RI003; QTwt, WRST)
QTd
Dacite
QTr
QTob
Olivine basalt flows
(AD005)
QTw
Wrangell Lava
(VA002; MC002; NB002; Qwf, GU002)
QTb
Basalt
(BG002; BR002; BT002; CA002; KT002; NR002; RM002; SE002; SH002; TA003; TC002; UL002; Tw, TA002; v, TA012)
QTi
Intrusive rocks
(QTi, GU002; VA002; UN002; QTvp, QTai, UK002; Tpp, AD002)
QTqk
Quartz keratophyre dikes
QTad
Porphyritic dikes and stocks of hornblende andesite and dacite
QTwr
Wrangell Lava, rhyodacite and rhyolite domes and associated pyroclastic rocks
(QTwr, NB002; Qwd, GU002)
QTvb
Pochnoi Volcanics - Tuff-breccia, lava flows, and agglomerate, largely basaltic
(Qtpo, RI002)
QTva
Quaternary and/or Tertiary pyroclastic flow deposits
(QTp, PM002; QTap, UK002)
QTk
Kiska Harbor Formation
(QTk, KK002)
QTkb
Kiska Harbor Formation, breccia member
(QTkb, KK002)
QTkf
Kiska Harbor Formation, flow member
(QTkf, KK002)
QTc
Quaternary or Tertiary metamorphic rocks, particularly in Mt. Dana area on Port Moller map
(QTc, PM002; QTvq, UK002)