| Formation Code | Formation Meaning |
|---|---|
| 000EXRV | Extrusive Rocks |
| 000IRSV | Intrusive Rocks |
| 050QUAL | Quaternary Alluvium in Valleys |
| 100QBAS | Quaternary basalt |
| 110ALVM | Quaternary Alluvium |
| 110AVMB | Alluvium, Bolson Deposits and Other Surface Deposits |
| 110BLSN | Bolson Fill |
| 110NTGU | Naha and Tsegi Alluvium Deposits, undifferentiated |
| 110PTODC | Pediment, Terrace and Other Deposits of Gravel, Sand and Caliche |
| 111MCCR | McCathys Basalt Flow |
| 112ANCH | Upper Santa Fe Group, Ancha Formation (QTa) |
| 112CURB | Cuerbio Basalt |
| 112LAMA | Lama Formation (QTl, QTbh) and other mountain front alluvial fans |
| 112LAMAb | Lama Fm (QTl, QTbh) between Servilleta Basalts |
| 112LGUN | Laguna Basalt Flow |
| 112QTBF | Quaternary-Tertiary basin fill (not in valleys) |
| 112QTBFlac | Quaternary-Tertiary basin fill, lacustrian-playa lithofacies |
| 112QTBFpd | Quaternary-Tertiary basin fill, distal piedmont lithofacies |
| 112QTBFppm | Quaternary-Tertiary basin fill, proximal and medial piedmont lithofacies |
| 112SNTF | Santa Fe Group, undivided |
| 112SNTFA | Upper Santa Fe Group, axial facies |
| 112SNTFOB | Upper SantaFe Group, Loma Barbon member of Arroyo Ojito Formatin |
| 112SNTFP | Upper Santa Fe Group, piedmont facies |
| 112TRTO | Tuerto Gravels (QTt) |
| 120DTIL | Datil Formation |
| 120ELRT | El Rito Formation |
| 120IRSV | Tertiary Intrusives |
| 120SBLC | Sierra Blanca Volcanics, undivided |
| 120SRVB | Tertiary Servilletta Basalts (Tsb) |
| 120SRVBf | Tertiary Servilletta Basalts, fractured (Tsbf) |
| 120TSBV_Lower | Tertiary Sierra Blanca area lower volcanic unit (Hog Pen Fm) |
| 120TSBV_Upper | Tertiary Sierra Blanca area upper volcanic unit (above Hog Pen Fm) |
| 121CHMT | Chamita Formation (Tc) |
| 121CHMTv | Chamita Fm, Vallito member (Tcv) |
| 121CHMTvs | Chamita Fm, sandy Vallito member (Tcvs) |
| 121OGLL | Ogallala Formation |
| 121PUYEF | Puye Conglomerate, Fanglomerate Member |
| 121TSUQ | Tesuque Formation, undifferentiated unit |
| 121TSUQa | Tesuque Fm lithosome A (Tta) |
| 121TSUQacu | Tesuque Fm (upper), Cuarteles member lithosome A (Ttacu) |
| 121TSUQacuf | Tesuque Fm (upper), fine-grained Cuarteles member lithosome A (Ttacuf) |
| 121TSUQaml | Tesuque Fm lower-middle lithosome A (Ttaml) |
| 121TSUQb | Tesuque Fm lithosome B (Ttb) |
| 121TSUQbfl | Tesuque Fm lower lithosome B, basin-floor deposits (Ttbfl) |
| 121TSUQbfm | Tesuque Fm middle lithosome B, basin-floor deposits (Ttbfm) |
| 121TSUQbp | Tesuque Fm lithosome B, Pojoaque member (Ttbp) |
| 121TSUQce | Tesuque Fm, Cejita member (Ttce) |
| 121TSUQe | Tesuque Fm lithosome E (Tte) |
| 121TSUQs | Tesuque Fm lithosome S (Tts) |
| 121TSUQsa | Tesuque Fm lateral gradation lithosomes S and A (Ttsag) |
| 121TSUQsc | Tesuque Fm coarse-grained lithosome S (Ttsc) |
| 121TSUQsf | Tesuque Fm, fine-grained lithosome S (Ttsf) |
| 122CHOC | Chamita and Ojo Caliente interlayered (Ttoc) |
| 122CRTO | Chama El Rito Formation (Tesuque member, Ttc) |
| 122OJOC | Ojo Caliente Formation (Tesuque member, Tto) |
| 122PICR | Picuris Tuff |
| 122PPTS | Popotosa Formation |
| 122SNTFP | Lower Santa Fe Group, piedmont facies |
| 123DTILSPRS | Datil Group ignimbrites and lavas and Spears Group, interbedded |
| 123DTMGandbas | Datil and Mogollon Group andesite, basaltic andesite, and basalt flows |
| 123DTMGign | Datil and Mogollon Group ignimbrites |
| 123DTMGrhydac | Datil and Mogollon Group rhyolite and dacite flows |
| 123ESPN | T Espinaso Formation (Te) |
| 123GLST | T Galisteo Formation |
| 123PICS | T Picuris Formation (Tp) |
| 123PICSc | T Picuris Formation, basal conglomerate (Tpc) |
| 123PICSl | T lower Picuris Formation (Tpl) |
| 123SPRSDTMGlava | Spears Group and Datil-Mogollon intermediate-mafic lavas, interbedded |
| 123SPRSlower | Spears Group, lower part; tuffaceous, gravelly debris and mud flows |
| 123SPRSmid_uppe | Spears Group, middle-upper part; excludes Dog Spring Formation |
| 124BACA | Baca Formation |
| 124CBMN | Cub Mountain Formation |
| 124LLVS | Llaves Member of San Jose Formation |
| 124PSCN | Poison Canyon Formation |
| 124RGIN | Regina Member of San Jose Formation |
| 124SNJS | San Jose Formation |
| 124TPCS | TapicitosMember of San Jose Formation |
| 125NCMN | Nacimiento Formation |
| 125NCMNS | Nacimiento Formation, Sandy Shale Facies |
| 125RTON | Raton Formation |
| 130CALDFLOOR | Caldera Floor bedrock S. of San Agustin Plains. Mostly DTILSPRS & Paleo. |
| 180TKSCC_Upper | Tertiary-Cretaceous, Sanders Canyon, Cub Mtn. and upper Crevasse Canyon Fm |
| 180TKTR | Tertiary-Cretaceous-Triassic, Baca, Crevasse Cyn, Gallup, Mancos, Dakota, T |
| 210CRCS | Cretaceous System, undivided |
| 210GLUPC_Lower | K Gallup Sandstone and lower Crevasse Canyon Fm |
| 210HOSTD | K Hosta Dalton |
| 210MCDK | K Mancos/Dakota undivided |
| 210MNCS | Mancos Shale, undivided |
| 210MNCSL | K Lower Mancos |
| 210MNCSU | K Upper Mancos |
| 211CLFHV | Cliff House Sandstone, includes La Ventana Tongues in NW Sandoval Co. |
| 211CRLL | Carlile Shale |
| 211CRVC | Crevasse Canyon Formation of Mesaverde Group |
| 211DKOT | Dakota Sandstone or Formation |
| 211DLCO | Dilco Coal Member of Crevasse Canyon Formation of Mesaverde Group |
| 211DLTN | Dalton Sandstone Member of Crevasse Canyon Formation of Mesaverde Group |
| 211FRHS | Fort Hays Limestone Member of Niobrara Formation |
| 211FRLD | Fruitland Formation |
| 211FRMG | Farmington Sandstone Member of Kirtland Shale |
| 211GBSNC | Gibson Coal Member of Crevasse Canyon Formation of Mesaverde Group |
| 211GLLG | Gallego Sandstone Member of Gallup Sandstone |
| 211GLLP | Gallup Sandstone |
| 211GRRG | Greenhorn and Graneros Formations |
| 211GRRS | Graneros Shale |
| 211HOST | Hosta Tongue of Point Lookout Sandstone of Mesaverde Group |
| 211KRLD | Kirtland Shale |
| 211LWIS | Lewis Shale |
| 211MENF | Menefee Formation |
| 211MENFU | K Upper Menefee (above Harmon Sandstone) |
| 211MVRD | Mesaverde Group |
| 211OJAM | Ojo Alamo Sandstone |
| 211PCCF | Pictured Cliffs Sandstone |
| 211PIRR | Pierre Shale |
| 211PNLK | Point Lookout Sandstone |
| 211SMKH | Smoky Hill Marl Member |
| 211TLLS | Twowells Sandstone Lentil of Pike of Dakota Sandstone |
| 212KTRP | K Dakota Sandstone, Moenkopi Fm, Artesia Group |
| 217PRGR | Purgatoire Formation |
| 220ENRD | Entrada Sandstone |
| 220JURC | Jurassic undivided |
| 220NAVJ | Navajo Sandstone |
| 221BLFF | Bluff Sandstone of Morrison Formation |
| 221CSPG | Cow Springs Sandstone of Morrison Formation |
| 221ERADU | Entrada Sandstone of San Rafael Group, Upper |
| 221MRSN | Morrison Formation |
| 221MRSN/BBSN | Brushy Basin Member of Morrison |
| 221MRSN/JCKP | Jackpile Sandstone Member of Morrison |
| 221MRSN/RCAP | Recapture Shale Member of Morrison |
| 221MRSN/WWCN | Westwater Canyon Member of Morrison |
| 221SLWS | Salt Wash Sandstone Member of Morrison Formation |
| 221SMVL | Summerville Formation of San Rafael Group |
| 221TDLT | J Todilto |
| 221WSRC | Westwater Canyon Sandstone Member of Morrison Formation |
| 221ZUNIS | Zuni Sandstone |
| 231AGZC | Tr Agua Zarca |
| 231AGZCU | Tr Upper Agua Zarca |
| 231CHNL | Chinle Formation |
| 231CORR | Correo Sandstone Member of Chinle Formation |
| 231DCKM | Dockum Group |
| 231PFDF | Tr Petrified Forest |
| 231PFDFL | Tr Lower Petrified Forest (below middle sandstone) |
| 231PFDFM | Tr Middle Petrified Forest sandstone |
| 231PFDFU | Tr Upper Petrified Forest (above middle sandstone) |
| 231RCKP | Rock Point Member of Wingate Sandstone |
| 231SNRS | Santa Rosa Sandstone |
| 231SNSL | Sonsela Sandstone Bed of Petrified Forest Member of Chinle Formation |
| 231SRMP | Shinarump Member of Chinle Formation |
| 231WNGT | Wingate Sandstone |
| 260SNAN | P San Andres |
| 260SNAN_lower | Lower San Andres Formation |
| 261SNGL | P San Andres - Glorieta Sandstone in Rio Bonito member |
| 300YESO | P Yeso |
| 300YESO_lower | Lower Yeso Formation |
| 300YESO_upper | Upper Yeso Formation |
| 310ABO | P Abo |
| 310DCLL | De Chelly Sandstone Member of Cutler Formation |
| 310GLOR | Glorieta Sandstone Member of San Andres Formation (of Manzano Group) |
| 310MBLC | Meseta Blanca Sandstone Member of Yeso Formation |
| 310TRRS | Torres Member of Yeso Formation |
| 310YESO | Yeso Formation |
| 310YESOG | Yeso Formation, Manzono Group |
| 312CSTL | Castile Formation |
| 312RSLR | Rustler Formation |
| 313ARTS | Artesia Group |
| 313BLCN | Bell Canyon Formation |
| 313BRUC | Brushy Canyon Formation of Delaware Mountain Group |
| 313CKBF | Chalk Bluff Formation |
| 313CLBD | Carlsbad Limestone |
| 313CPTN | Capitan Limestone |
| 313GDLP | Guadalupian Series |
| 313GOSP | Goat Seep Dolomite |
| 313SADG | San Andres Limestone and Glorieta Sandstone |
| 313SADR | San Andres Limestone, undivided |
| 313TNSL | Tansill Formation |
| 313YATS | Yates Formation, Guadalupe Group |
| 315LABR | P Laborcita (Bursum) |
| 315YESOABO | Alamosa Creek and San Agustin Plains area - Yeso and Abo Formations |
| 318ABO | P Abo |
| 318BSPG | Bone Spring Limestone |
| 318JOYT | Joyita Sandstone Member of Yeso Formation |
| 318YESO | Yeso Formation |
| 319BRSM | Bursum Formation and Equivalent Rocks |
| 320HLDR | Penn Holder |
| 320PENN | Pennsylvanian undivided |
| 320SNDI | Sandia Formation |
| 321SGDC | Sangre de Cristo Formation |
| 322BEMN | Penn Beeman |
| 325GBLR | Penn Gobbler |
| 325MDER | Madera Limestone, undivided |
| 325MDERL | Penn Lower Madera |
| 325MDERU | Penn Upper Madera |
| 325SAND | Penn Sandia |
| 326MGDL | Magdalena Group |
| 340EPRS | Espiritu Santo Formation |
| 350PZBA | Alamosa Creek and San Agustin Plains area - Paleozoic strata beneath Abo Fm |
| 350PZBB | Tul Basin area - Paleozoic strata below Bursum Fm |
| 400EMBD | Embudo Granite (undifferentiated PreCambrian near Santa Fe) |
| 400PCMB | Precambrian Erathem |
| 400PREC | undifferentiated PreCambrian crystalline rocks (X) |
| 400PRECintr | PreCambrian crystalline rocks and local Tertiary intrusives |
| 400PRST | Priest Granite |
| 400TUSS | Tusas Granite |
| 410PRCG | PreCambrian granite (Xg) |
| 410PRCGf | PreCambrian granite, fractured (Xgf) |
| 410PRCQ | PreCambrian quartzite (Xq) |
| 410PRCQf | PreCambrian quartzite, fractured (Xqf) |
| 121GILA | Gila Conglomerate (group) |
| 312DYLK | Dewey Lake Redbeds |
| 120WMVL | Wimsattville Formation |
| 313GRBG | Grayburg Formation of Artesia Group |
| 318ABOL | Abo Sandstone (Lower Tongue) |
| 318ABOU | Abo Sandstone (Upper Tongue) |
| 112SNTFU | Santa Fe Group, Upper Part |
| 310FRNR | Forty-Niner Member of Rustler Formation |
| 312OCHO | Ochoan Series |
| 313AZOT | Azotea Tongue of Seven Rivers Formation |
| 313QUEN | Queen Formation |
| 319HUCO | Hueco Limestone |
| 313SVRV | Seven Rivers Formation |
| 313CABD | Carlsbad Group |
| 320GRMS | Gray Mesa Member of Madera Formation |
| 211CLRDH | Colorado Shale |
| 120BRLM | Bearwallow Mountain Andesite |
| 122RUBO | Rubio Peak Formation |
| 313SADRL | San Andres Limestone, Lower Cherty Member |
| 313SADRU | San Andres Limestone, Upper Clastic Member |
| 313BRNL | Bernal Formation of Artesia Group |
| 318CPDR | Chupadera Formation |
| 121BDHC | Bidahochi Formation |
| 313SADY | San Andres Limestone and Yeso Formation, undivided |
| 221SRFLL | San Rafael Group, Lower Part |
| 221BLUF | Bluff Sandstone of Morrison Formation |
| 221COSP | Cow Springs Sandstone of Morrison Formation |
| 317ABYS | Abo and Yeso, undifferentiated |
| 221BRSB | Brushy Basin Shale Member of Morrison Formation |
| 310SYDR | San Ysidro Member of Yeso Formation |
| 400SDVL | Sandoval Granite |
| 221SRFL | San Rafael Group |
| 310SGRC | Sangre de Cristo Formation |
| 231TCVS | Tecovas Formation of Dockum Group |
| 211DCRS | D-Cross Tongue of Mancos Shale of Mesaverde Group |
| 211ALSN | Allison Member of Menefee Formation of Mesaverde Group |
| 211LVNN | La Ventana Tongue of Cliff House Sandstone |
| 211MORD | Madrid Formation |
| 210PRMD | Pyramid Shale |
| 124ANMS | Animas Formation |
| 211NBRR | Niobrara Formation |
| 111ALVM | Holocene Alluvium |
| 122SNTFL | Santa Fe Group, Lower Part |
| 111CPLN | Capulin Basalts |
| 120CRSN | Carson Conflomerate |
| 111CRMS | Covered/Reclaimed Mine Spoil |
| 111CRMSA | Covered/Reclaimed Mine Spoil and Ash |
| 111SPOL | Spoil |
| 110TURT | Tuerto Gravel of Santa Fe Group |
| 221RCPR | Recapture Shale Member of Morrison Formation |
| 320BLNG | Bullington Member of Magdalena Formation |
| 112ANCHsr | Upper Santa Fe Group, Ancha Formation & ancestral Santa Fe river deposits |
| 121TSUQae | Tesuque Fm Lithosomes A and E |
| 230TRSC | Triassic undifferentiated |
| 122TSUQdx | Tesuque Fm, Dixon member (Ttd) |
| 123PICSu | T upper Picuris Formation (Tpu) |
| 123PICSm | T middle Picuris Formation (Tpm) |
| 123PICSmc | T middle conglomerate Picuris Formation (Tpmc) |
| 120VBVC | Tertiary volcanic breccia/volcaniclastic conglomerate |
| 120VCSS | Tertiary volcaniclastic sandstone |
| 124DMDT | Diamond Tail Formation |
| 325ALMT | Penn Alamitos Formation |
| 400SAND | Sandia Granite |
| 318VCPK | Victorio Peak Limestone |
| 318BSVP | Bone Spring and Victorio Peak Limestones |
| 100ALVM | Alluvium |
| 310PRMN | Permian System |
| 110AVPS | Alluvium and Permian System |
| 313CRCX | Capitan Reef Complex and Associated Limestones |
| 112SLBL | Salt Bolson |
| 112SBCRC | Salt Bolson and Capitan Reef Complex |
| 313CRDM | Capitan Reef Complex - Delaware Mountain Group |
| 112SBDM | Salt Bolson and Delaware Mountain Group |
| 120BLSN | Bolson Deposits |
| 112SBCR | Salt Bolson and Cretaceous Rocks |
| 112HCBL | Hueco Bolson |
| 120IVIG | Intrusive Rocks |
| 112RLBL | Red Light Draw Bolson |
| 112EFBL | Eagle Flat Bolson |
| 112GRBL | Green River Bolson |
| 123SAND | Sanders Canyon Formation |
| 210MRNH | Moreno Hill Formation |
| 320ALMT | Alamito Shale |
| 313DLRM | Delaware Mountain Group |
| 300PLZC | Paleozoic Erathem |
| 122SPRS | Spears Member of Datil Formation |
| 110AVTV | Alluvium and Tertiary Volcanics |
| 313DMBS | Delaware Mountain Group - Bone Spring Limestone |
| 120ERSV | Tertiary extrusives |