Geologic Map of the Hogback Mountain Quadrangle, Lewis and Clark and Meagher Counties, Montana

Online link https://geo-nsdi.er.usgs.gov/metadata/map-i/2773/metadata.faq.html
Description The geologic map of the Hogback Mountain quadrangle, scale 1:24,000, was made as part of the Montana Investigations Project to provide new information on the stratigraphy, structure, and geologic history of an area in the geologically complex southern par
Originators Reynolds, Mitchell W.

Related topics

States or counties

Overview of attributes

>---------------------------------------------------------------
>COVERAGE NAME: hogpoly.pat
>---------------------------------------------------------------
>COLUMN  ITEM NAME    WIDTH  OUTPUT  TYPE  N.DEC  ALTERNATE NAME   INDEXED?
>1    AREA                8      18     F      5                        -
>9    PERIMETER           8      18     F      5                        -
>17   HOGBACKPOLY#        4       5     B      -                        -
>21   HOGBACKPOLY-ID      4       5     B      -                        -
>25   LABEL              10      10     C      -                        -
>35   SHADESYM            4       4     I      -                        -
>39   DESCRIPTION       100     100     C      -   DESC                 -
>139  PATTERN            10      10     I      -                        -
>------------------------------------
>USER-DEFINED ITEMS IN HOGPOLY.PAT:
>------------------------------------
>ITEM NAME: LABEL
>DATABASE ITEM STRUCTURE: 10,10,C,0
>DESCRIPTION  text description of feature type
>ITEM VALUES FOR 'LABEL':
>Cf
>Cm
>Cpp
>Cw
>DCu
>Dj
>Dm
>Jme
>Khd
>Kk
>MDt
>Mbk
>Mbu
>Ml
>Mm
>OGb
>PPpq
>Pa
>QTg
>Qa
>Ql
>Qog
>Yg
>Yn
>ITEM NAME: SHADESYM
>DATABASE ITEM STRUCTURE: 4,4,I,0
>DESCRIPTION  shade symbol value from shadeset color524.shd to fill polygons
>ITEM VALUES FOR 'SHADESYM':
>0
>4
>30
>52
>55
>60
>71
>100
>102
>143
>164
>233
>261
>263
>264
>274
>300
>304
>346
>410
>453
>511
>530
>533
>611
>ITEM NAME: DESCRIPTION
>DATABASE ITEM STRUCTURE: 100,100,C,0
>DESCRIPTION  text description of feature type
>ITEM VALUES FOR 'DESCRIPTION':
>Flathead Sandstone (Middle Cambrian)
>Meagher Limestone (Middle Cambrian)
>Pilgrim Formation and Park Shale, undivided (Upper and Middle Cambrian)
>Wolsey Shale (Middle Cambrian)
>Devonian and Cambrian rocks undivided
>Jefferson Formation (Upper Devonian)
>Maywood Formation (Upper and Middle Upper Devonian)
>Morrison Formation and Ellis Group undivided (Jurassic)
>Hornblende diorite (Upper Cretaceous)
>Kootenai Formation (Lower Cretaceous)
>Big Snowy Group, Kibbey Formation (Upper Mississippian)
>Big Snowy Group, Health and Otter Formations, undivided (Upper Mississippian)
>Three Forks Formation (Lower Mississippian and Upper Devonian)
>Lodgepole Limestone (Lower Mississippian)
>Mission Canyon Limestone (Upper and Lower Mississippian)
>Basalt (Oligocene)
>Amsden Formation  (Pennsylvanian)
>Phosphoria and Quadrant Formations, undivided (Permian and Pennsylvanian)
>Alluvium (Holocene)
>Landslide deposits (Holocene and Pleistocene)
>Old gravel (Holocene and Pleistocene)
>Older gravel (Pleistocene and Pliocene)
>Greyson Formation (Belt Supergroup, Middle Proterozoic)
>Newland Formation (Belt Supergroup, Middle Proterozoic)
>Diorite sills (Upper Proterozoic)
>ITEM NAME: PATTERN
>DATABASE ITEM STRUCTURE: 10,10,I,0
>DESCRIPTION  Indicates cross hatch sections
>ITEM VALUES FOR 'PATTERN':
>0
>101
>*******************************************************************************
>---------------------------------------------------------------
>COVERAGE NAME: hogpoly.aat
>---------------------------------------------------------------
>COLUMN  ITEM NAME    WIDTH  OUTPUT  TYPE  N.DEC  ALTERNATE NAME   INDEXED?
>1   FNODE#               4       5     B      -                        -
>5   TNODE#               4       5     B      -                        -
>9   LPOLY#               4       5     B      -                        -
>13  RPOLY#               4       5     B      -                        -
>17  LENGTH               8      18     F      5                        -
>25  HOGBACKPOLY#         4       5     B      -                        -
>29  HOGBACKPOLY-ID       4       5     B      -                        -
>33  LINECODE             4       4     I      -                        -
>37  DESCRIPTION         80      80     C      -    DESC                -
>------------------------------------
>USER-DEFINED ITEMS IN HOGPOLY.AAT:
>------------------------------------
>ITEM NAME: LINECODE
>DATABASE ITEM STRUCTURE: 4,4,I,0
>DESCRIPTION  set lineset values for line coding
>ITEM VALUES FOR 'LINECODE':
>1
>2
>3
>4
>15
>20
>22
>24
>26
>35
>51
>176
>183
>184
>216
>217
>218
>220
>221
>222
>223
>227
>321
>328
>330
>ITEM NAME: DESCRIPTION
>DATABASE ITEM STRUCTURE: 80,80,C,0
>DESCRIPTION  text description of linear feature type
>ITEM VALUES FOR 'DESCRIPTION':
>contact - approximately located
>contact - certain
>contact - concealed
>contact - inferred
>dike - OGb
>dike Khd - approximately located
>dike Khd - certain
>dike Zd - approximately located
>dike Zd - certain
>fault - approximately located
>fault - certain
>fault - inferred
>fault displacement unknown - concealed
>neatline
>normal fault - concealed
>normal fault - inferred
>overturn thrust fault - approximately located
>overturn thrust fault - certain
>thrust fault - approximate location queried
>thrust fault - approximately located
>thrust fault - certain
>thrust fault - concealed
>thrust fault - inferred
>thrust fault - inferred, queried
>******************************************************************************
>---------------------------------------------------------------
>COVERAGE NAME: hogline
>---------------------------------------------------------------
>COLUMN  ITEM NAME    WIDTH  OUTPUT  TYPE  N.DEC  ALTERNATE NAME   INDEXED?
>1    FNODE#              4       5     B      -                        -
>5    TNODE#              4       5     B      -                        -
>9    LPOLY#              4       5     B      -                        -
>13   RPOLY#              4       5     B      -                        -
>17   LENGTH              8      18     F      5                        -
>25   HOGBACKLINE#        4       5     B      -                        -
>29   HOGBACKLINE-ID      4       5     B      -                        -
>33   LINECODE            3       3     I      -                        -
>36   DESCRIPTION        80      80     C      -    DESC                -
>116  LINESET            30      30     C      -                        -
>------------------------------------
>USER-DEFINED ITEMS IN HOGLINE.AAT:
>------------------------------------
>ITEM NAME: LINECODE
>DATABASE ITEM STRUCTURE: 3,3,I,0
>DESCRIPTION  set lineset values for line coding in hogline
>ITEM VALUES FOR 'LINECODE':
>1
>60
>61
>62
>80
>81
>92
>93
>94
>112
>113
>114
>121
>332
>ITEM NAME: DESCRIPTION
>DATABASE ITEM STRUCTURE: 80,80,C,0
>DESCRIPTION  text description of linear feature type
>ITEM VALUES FOR 'DESCRIPTION':
>anticline - approximately located
>anticline - certain
>anticline - inferred
>inverted anticline - approximately located
>inverted syncline - approximately located
>line of cross-section A
>line of cross-section B
>line of cross-section C
>line of cross-section D
>overturned anticline - approximately located
>overturned anticline - certain
>overturned syncline, approximately located
>overturned syncline, certain
>overturned syncline, concealed
>overturned syncline, inferred
>syncline - Approximately located
>syncline - certain
>syncline - concealed
>syncline - inferred
>ITEM NAME: LINESET
>DATABASE ITEM STRUCTURE: 30,30,C,0
>DESCRIPTION  identifies linesets used for linear symbolset
>ITEM VALUES FOR 'LINESET':
>geol_sfo.lin
>plotter
>********************************************************************************
>---------------------------------------------------------------
>COVERAGE NAME: hogpoint
>---------------------------------------------------------------
>COLUMN  ITEM NAME    WIDTH  OUTPUT  TYPE  N.DEC  ALTERNATE NAME   INDEXED?
>1    AREA                8      18     F      5                        -
>9    PERIMETER           8      18     F      5                        -
>17   HOGBACKPT#          4       5     B      -                        -
>21   HOGBACKPT-ID        4       5     B      -                        -
>25   SYMBOL              3       3     I      -                        -
>28   ROTATION            3       3     I      -    AZIMUTH             -
>31   INCLINATION         3       3     I      -    DIP                 -
>34   DESCRIPTION        80      80     C      -    DESC                -
>118  SYMSET             10      10     C      -                        -
>------------------------------------
>USER-DEFINED ITEMS IN HOGPOINT.PAT:
>------------------------------------
>ITEM NAME: SYMBOL
>DATABASE ITEM STRUCTURE: 3,3,I,0
>DESCRIPTION  value used to identify symbol from markerset
>ITEM VALUES FOR 'SYMBOL':
>1
>2
>3
>6
>7
>15
>101
>109
>114
>133
>742
>743
>746
>747
>ITEM NAME: ROTATION
>DATABASE ITEM STRUCTURE: 3,3,I,0
>DESCRIPTION  compass orientation of feature, in degrees
>ITEM VALUES FOR 'ROTATION':
>0
>4
>7
>13
>20
>30
>35
>37
>57
>58
>60
>65
>67
>70
>73
>80
>82
>83
>85
>88
>90
>92
>94
>95
>98
>100
>102
>103
>105
>107
>108
>110
>112
>113
>114
>115
>116
>117
>118
>120
>125
>127
>128
>130
>132
>133
>135
>137
>140
>142
>143
>145
>147
>148
>150
>153
>155
>157
>160
>162
>163
>165
>166
>168
>170
>173
>175
>177
>180
>185
>195
>205
>210
>213
>215
>220
>225
>230
>235
>236
>240
>247
>248
>255
>257
>258
>260
>262
>270
>273
>274
>275
>279
>283
>287
>290
>293
>294
>297
>300
>303
>305
>310
>312
>313
>315
>318
>327
>330
>335
>338
>342
>345
>348
>350
>ITEM NAME: INCLINATION
>DATABASE ITEM STRUCTURE: 3,3,I,0
>DESCRIPTION  inclination from horizontal of feature, in degrees
>ITEM VALUES FOR 'INCLINATION':
>0
>5
>7
>8
>10
>12
>13
>15
>17
>18
>20
>22
>23
>24
>25
>26
>27
>28
>30
>31
>32
>33
>34
>35
>36
>37
>38
>40
>42
>43
>45
>46
>47
>48
>50
>52
>53
>55
>57
>60
>64
>65
>66
>67
>68
>70
>74
>75
>76
>77
>80
>83
>85
>90
>ITEM NAME: DESCRIPTION
>DATABASE ITEM STRUCTURE: 80,80,C,0
>DESCRIPTION  text description of each symbol
>ITEM VALUES FOR 'DESCRIPTION':
>Dip of fault surface
>Dry oil well
>bedding overturned > 180 degrees - strike and dip
>Zd outcrop too small to show at map scale
>horizontal bedding
>inclined bedding - strike and dip
>inclined cleavage - strike and dip
>overturned bedding - strike and dip
>prospect
>quartz vein
>spring
>vertical bedding
>ITEM NAME: SYMSET
>DATABASE ITEM STRUCTURE: 10,10,C,0
>DESCRIPTION  defines markersets used
>ITEM VALUES FOR 'SYMSET':
>GEOSCAMP2
>MUNICIPAL
>OILGAS
>USGS

http://pubs.usgs.gov/imap/i-2773/i-2773_508.pdf