600 210 2000 1550 5400 5400 4800 2000 2050 52 4400 4600 4400 2050 5400 00 4800 Ja 1500 56005400 4600 4600 4600 4600 0 4800 195 4600 48004600 1950 1450 1950 48 5600 2200 1900 1600 5200 4400 4600 4600 5400 5000 Trc Ja 1550 5400 4800 2050 1500 5200 5200 4800 1950 45 4600 4800 2200 2000 2000 5000 2100 1900 4600 4800 1600 1600 1950 4800 2000 4800 1550 4600 1750 25 1850 1600
1550 4600 1700 45 1450 1900 1700 4800 1600 Trm 4400 V 5000 1950 60 1800 2050 IV III II 60 2050 4400 1900 I 4600 4600 2100 2000 Cbkl 21502150 2100 Cd VI 2050 1850Cn Qa 4400 1900 JKc 2050 1550 2150 5400 5000
1850 2050 1600 4800
2100 4600 4200
1600 5600 1750 1650 1750 4400 2150 1700 2050 VII 2100 1900 1750 55 Pk 5800 5200 5000 4 20502100 1700 1850 1700 67 40 2050 21502100 55 III
1800 1800 1800 33 5800 60 1750
2150 2050 41 1900 1750 2250 41 2000 2000 1950
1850 5400 4800 1900 5600 30 60 1850 2100 2050 1950 6200 54 47 4200 2050 2250 1950 2150 45 6000 65 30 2000 4000 I 65 2050 2300 VII 1700 Cbkl 2150 IV 60 1950 1950 I 5000 1850 VI Cd 1800 1650 4600 30 1700 1800 1600 4600 58 2000
2050 1550 Cbkl 4800 5200 71 5000 4800 5000 25 I 60 5000 4800 37 2100 5000 1800 58 Cbkl 2300 II 1500 V 60 35 5000 5200 45 2050 1550 I 1750 5000 5600 2100 1550 2200 Cbkl 1750 2200 75 5800 1650 5400 55 50 5600 5200 5400 5800 2250 45 II I 56005400 5200 1850 51 1800 1700 2200 2000 1850 5800 2100 40 1900 1700 5800 19501900 1700 1750 1750 65 42 1700 6000 6000 1750 22 1800 5400 2200 65 5200 60 1850 1800 5800 5200 Geologic Map of the Wilson Cliffs, 1850 III 1850 2200 III 71 1950 1800 33 1800 1850 5600 750 40 30 IV 2000 1 5800 1850 5400 50 55 III 1900 2300 2000 2050 6400 1750 6000 1900 Potosi1700 Mountain Area, Nevada 2150 75 1850 6000 5000 1950 60 71 40 6200 6000 43 1950 71 2050 6600 6200 2250 V 1950 5400 45 1900 Geology by: B.C Burchfiel, C.S. Cameron, L.H. Royden 65 40 2050 38 10 2050 1950 2050 5200 20 45 6600 5400 2050 6600 6000 1800 20 2100 40 2000 19001950 1750 30 13 51 2050 1950 2000 55 1900 5000 Explanation 45 4800 30 2050 6800 1850 30 1950 I 1950 6400 6200 2000 5000 45 2050 1900 0 15 1800 6000 6000 205 30 30 1950 1850 6200 4600 1950 1850 6000 Contacts 1950 2000 1800 4600 4600 Qa Alluvium 37 1750 5800 1900 31 1700 4200 205 45 2100 5800 0 1950 1600 4000
Quaternary 30 48 V 1800 1700 Definite, approximate, approximate queried, inferred or concealed. 1950 1650 1550 1550 30 2200 20 25 1550 1550 1950 1550 5000 40 20 20 1500 5200 5400 VI 45 1500 2000 1850 1450 1500 4600 0 1700 1750 1600 1550 4800 200 1850 2050 20 I 1400 40 2050 1450 4600 1650 15 Key units. 2100 5 27 1700 4400 4600 4600 50 1950 1900 1600 Tl Landslide2150 Deposits V 2050 30 1800 1550 1550 4600 4600 55 1600 4600 4400 1900 2000 2000 1750 1550 4400 4400 2200 4400 1850 Tertiary 2050 25 4600 2100 60 1600 Faults 2000 1550 1900 1900 2200 55 1600 5000 4400 2000 30 1650 5200 5200 1800 37 1850 40 5200 22 2000 5400 5400 5000 2150 4400 4000 Thrust Fault: definite, approximate, approximate queried, inferred 40 5200 5200 5000 4400 2100 1750 5000 Jkc 1950 1800 4600 4800 2000 Channel Conglomerates 1600 4600 4800 1950 4400 or concealed. 550 4400 4400 4600 2250 2050 35 1 4400 5000 47 1500 1400 4600 1750 18 4800 2250 1450 4800 1750 4600 4800 4600 5000 3800
Jurassic 53 1850 5000 Ja Aztec Sandstone 33 5200 4600 5200 4400 Bedding plane fault or low angle fault: definite, approximate, 2050 2200 25 1700 4600 5000 5400 5000 5000 VII 5600 approximate queried, inferred or concealed. 27 4800 5800 5000 2150 30 2150 5200
5200 5600
5600 1450 Trc Chinle Formation 50 1500 1900 6000
2100 5400 5400 40 50004800 15 5800 High angle fault: arrows indicate slip where known; ball Cd 70 5600 5600 1900 2100 Trs Shinarump Congolmerate 2050 on downthrown block where only separation is known. 1750 5200 5000 Triassic 6000 5600 5200 5800 5200 4600 I 1650 6000 2250 50 5600 nonsequence 6200 1900 5600 5800 1850 6000 III 5600 2200 33 6000 1750 5600 Trm Moenkopi Formation 6000 6000 5400 VI 6000 6200 Contact at the base of gravity slide masses. 6400 6200 5000 Cbkl 6600 6600 5800 80 6600 6800 6600 5600 1700 5600 2050 20 Attitudes 55 50 20 JKc 6800 5600 35 6600 6600 2200 32 40 40 6800 Cn Cbkl 6800 5600 Pk Kaibab Formation 30 2000 6600 4200 6400 6000 1750 40 6400 6000 5800 5400 Inclined, overturned, vertical, and horizontal . 1650 55 35 Cbkl nonsequence 43 1950 5400 30 50 38 5800 5800 Permian 6000 5800 6200 1900 5600 MPb Bird Spring Formation 5600 4600 0 5400 5000 200 Folds 1800 Qa 40 5000 5000 Mi 35 40 1750 5000 Indian Spring Member 35 1850 1700 5200 55 1650 4800 60 VI 1800 Monte Cristo Limestone Cd 46 5200 1850 VII 50
5000 Pennsylvanian 4400 Axial traces of anticline,1700 syncline, overturned anticline, My Yellowpine Member 40 Oms 5800 5600 4000 overturned syncline, showing plunge. 45 5400 4600 50 5000 IV 5400 Mb Bullion Member 5800 3800 6000 Breccia Mm 65 1800 4400 Ma Anchor Member 38 30 4200 1600 1900 Mississippian III III 5200 56 4200 55 00 4600 2000 Qa 5600 4800 5400 Md Dawn Member 5600 4800 2050 Cn II 25 55 1650 45 55 6000 5200 60 35 21 1 52 50 750 6200 0m 500m 1000m 2km VII 5600 Cd 40 5600 5800 5800 6400 2100 7000 5200 30 6200 2050 35 60 4200 Sultan Limestone 35 6000 7000 5800
Ds Cbk 6200 35 7000 115 37' 30'' 115 30' 00'' 1550 115 22' 30'' 2000 80 25 III Dsi Ironside Member 6200 5200
5400 2050 36 15' 00'' 36 15' 00'' Devonian 45 Cd 1950 4800 55 6800 La Madre Springs La Madre Mountain 80 25 55 6600 Dsi 55 40 25 VII 6400 1950 2050 60 75 80 Cn 6400 1950 40 35 51 V 60 75 3800 1600 45 2100 6800 V 1600 Oms Mountain Springs Formation Cbk 75 30 5200 VI 25 5200 Cn 45 6800 Ordovician 70 45 6000 2000 2050 50 5800 5400
2050 II 5200 6400 5600 6000 55 5400 5200 Cn Ds 70 80 Nopah Formation 53 65 78 15 30 60 30 V Cd 25 80 5000 USGS 7.5' quadrangle 1900 Qa 4800 USGS 7.5' quadrangle Cd Dunderberg Shale Formation 2050 V 75 contour interval 40 feet VII 4600 contour interval 10 meters VII 50 36 07' 30'' 36 07' 30'' 1900 62 40 400 62 50 Cn Cn 5400 5200 VII Bonanza King VII VI 60 5400 5200 1550 5000 Oms 6000 60 60 80 Cd Mountain Springs Cd 6200 6000 VI Bonanza King VI 60 V 5800 45 70 6600 5400 40 6400
1800 VI 65 1950 Blue Diamond 1650 V Bonanza King Unit V 50 60 80 6200 6200 6000 5600 1700 63 70 706800 35 6600 40
Cambrian IV Bonanza King Unit IV 6200 31 Bonanza King Upper Bonanza King Formation 40 IV Cn 35 Cn 6000 60 80 75 25 6000 3800 50 65 60 50 III Bonanza King Unit III 61 70 1850 Cd 45 50 6400 1450 6200 50 6000 25 VII 65 5600
Cbku II Cbk Bonanza King Unit II 70 IV 40 Oms 38 6400 6200 USGS 7.5' quadrangle 65 6200 6200 6200 USGS 7.5' quadrangle 1850 70 6200 I Bonanza King Unit I 6000 50 10 25 6000 3600 contour interval 10 meters 1650 65 6000 contour interval 40 feet 60 15 6000 6000 6200 70 6000 6200 4800 36 00' 00'' 6200 1950 VI 81 5200 36 00' 00'' 5800 1600 Cbkl Bonanza King Lower Dsi IV 5800 60 5600 1900 5600 60 55 70 5800 1500 75 Ds 75 5600 5600 1550 IV 65 5400 5000 5200 4800 80 4400 Potosi Mountain 1750 VII CottonWood Pass 65 4600 4800
1800 6200 80 50 40 6000 N 1800 80 55 61 41 65 4200 65 61 60 5 41 30 65 1600 Cbk 70 50 Cn 62 1 4 5600 3 2 60 5600 60 80 5800 1 40 III 5200 4200 2 65 5000 1800 Cbk 40 4800 4600 USGS 7.5' quadrangle USGS 7.5' quadrangle 70 4600 Cbk 1850 60 4200 4000 contour interval 10 meters contour interval 40 feet 60 80 IV 4600 4400 35 52' 30'' 35 52' 30'' Cbk 4800 Ja 5000 4400 4600 61 115 37' 30'' 115 30' 00'' 115 22' 30'' 6000 1800 80 5600 5000 Cn Cbk 50 50 51 II 5400 40 40 60 I Ds Oms 5000 87 IV Cbk Cbkl 40 6200 5600 Cbk 6000 III
5400 5600 V 5400 80 5600 5200 1800 Cbk 80 5200
1700 4800 65 75 I 4400 50 Qa 4600 75 III Oms 70 V V 50 5600 70 IV Cn5800 5800 Cbk Ds 50 50 6000 50 1600 1600 Mm Dsi 1800 55 80 6000 6200 5000 Interstate 15 1600 1750 6000 70 85 70 70 75 31 1750 70 60 60 1800 1600 60 6 7 Cbk 6200 11 40 40 65 1800 5 55 35 35
1700 III 9 10 5800 8 Las Vegas 50 61 65 9 10 1650 25 85 1750 55 60 6000 3800 80 25 6200 Study Area Cbk 61 20 70 70 6200 45 6200 V 6200 6200 5000 6200 6200 1650 III 6000 40 6000 72 45 6000 80 5800 6000 6200 IV 20 6000 5200 5000 4600 5800 5600 4800 1800 5600 5000 Reference map of Southern 5400 3800 5400 5400 5600 6200 5200 IV 5600 Nevada with a digital 5200 VI 5400 5000 1750 5200 elevation image showing 5200 5000 15 5400 4800 1700 the region of interest. 5600 5400 30 17 15 70 5200 72 70 6400 1550 5800 3800 7 3800 Oms VI 4600 5200 1800 15 4800 1750 5200 Cn 4800 6000 4800 4800 4400 5800 5600 4400 70 5000 16 VI 6600 5600 70 20 45 5200 3800 8 5800 6200 15 IV 6000 12 6600 13 17 33 25 6000 17 11 6000 4000 Cd 14 133800 1750 7 6000 75 15 6200 6000 3800 14 Oms 28 40 4000 VII 12 5800 3800 1600 6000 30 1500 6200 80 IV 6000 5800 1750 5600 1600 80 8 V 1750 Cn 5200 6400
5600 5400 This map has been digitally treated by Aaron Ferris, University of Kansas, Department of Geology, GIS Laboratory. 30 5800 1700 12 10 4800 45 5000 1700 1650 25 45 65 40 6400 55 75 25 5800 5800 1750 5800 13
Qa 4000 10 80 5200 1550 VII 30 60 30 4600 1700 1650 75 5000 Cbk 6000 35 1650 1750 5600 60 V 3800 1800 1700 15 15 4400 25 60 25 4800 5200 60 20 15 25 VI 5200 1550 23 51 Qa 40 25 15 5200 20 15 6000 5400 1500 5000 25 20 V 30 31 6000 VI 25 5000 1600 30 15 5400 31 6200 6200 50 40 20 30 5400 1700 17 19 5800 15 10 23 18 20 18 6000 20 1650 20 5800 21 10 22 40 25 30 5600 1450 22 70 8 60 50 5400 1600 VI 21 1700 40 JKc 15 40 10 8 10 VII 4600 70 60 70 V 10 35 VI 10 VI 1550 20 21 55 60 18 15 8 4200 1500 1750 V Qa 4200 V 10 6000 6000 10 1850 10 21 25 23 21 5 61 10 45 V51 25 5 V 31 1900 41 66 60 Trs5400 1950 60 25 12
25 15 4800 35 Cd 25 VI VII 47 V 40 20 22 31 5200 30 45 40 20 35 60 1500 1800 40 35 21 Cn 40 5800 55 IV 50 70 40 41 III 5800 60 30 35 30 Cd VII
5600 5400 5000 29 20 2818 35 VII 20 25 25 5800 20 5800 70 85 5600 27 24 20 25 30 75 Mma 26 25 40 1550 26 30 40 Cd 1600 5400 5600
1700 1750 20 20 30 Cn 5400 1800 VI 14 5000 VII 70 21 5600 5200 10 5800 1850 Mmd 1800 1800 20 5000 1800 60 4400 1750 1900 IV III 10 5200 4 1850 25 1750 IV 5400 75 10 5000 1400 30 35 5200 1600 1850 35 1700 45 35 5200 1450 200045 1800 40 V 1500 1800 20
1900
1950 34 1600 10 30 34 5000 1700
1850 12 1650 35 15 15 28 3220 30 29 4600 36 29 1850 35 32 Mmb Mmd 35 Dsi 40 40 40 Mma 34 30 7 12 4200 1850 45 5 2000 40 50 MPb Cd 5600 50 41 5000 1950 45 40 V 70 Ds 6000 40 50 50 Mmy 1900 32 51 Oms Ds Mma 1850 45 Dsi 77 2000 50 1700 55 Mmd 45 10 15 14 Mmd 41 2000 Qa 15 70 Cn Mmb 5800 1800 10 6800 5400 45 1750 27 34 25 31 25 Dsi 33 1800 29 45 10 30 Trc 75 1800 6000 81 25 2100 45 Dsi 26 1600 IV Mmb Ds 70 83 40 20 30 55 Ds 35 81 4800 1950 2150 40 1950 Oms 1750 60 85 Mmb 2050 2200 35 1900 60 Dsi Mmd 40 20 25 Qa 35 20 10 30 Mmy 4400 2200 Oms
25 6000 Mma 30 25 6800 45 1950 20 15 14 23 Mmd Dsi 25 18 15 MPb 40 10 Mma 22 10 5800 1900 23 35 30 30 10 Mmd 1850 Dsi 5 30 20 Cbku 6400 35 25 10 20 Mma 6200 1550 50 50 41 IV 35 7000 1500 6400 Tl 30 1850 5 45 13 Mma Mmy 50 21 35 21 15 10 10 7400 80 1900 MPb 2100 35 V 70 Qa 30 7 14 10 62 30 15 Mmb Qa 20 16 5600 MPb 30 VI 32 15 17 75 15 Cn Mmd 45 20 60 VII 25 Cd 25 22 25 60 55 Cbku 30 1 1650 50 11 35 VII Cn MPb 21 35 1950 Cn Oms 70 175035 2150 4 Mmb 55 20 3 Mmb Mmy 2 1450 60 Cd 6800 2000 Ds Tl 25 23 Mm 35 2250 Dsi 2200 Mma Oms 35 Dsi 30 38 Dsi 5400 1900 1950 2100 20 31 Oms 2050
2050 80 2150 2200 11 70 2250 7200 6400 32 2300 4 23 30 65 6800 5200 2300 2350 Mma 1900 28 10 60 2250 35 65 2200 22 24 25 Ds Trc 16 20 25 4800 1650 25 26 Ds 5000 Dsi 55 Mma 2400 2450 11 Trm 1700 16 28 2400 2500 85 27 Mmb 2350 10 2550 Ja 2050 1800 7000 6000 30
7400 26 62 Mma 21 83
7600 5200 Oms 60 5000 1800 31 Mmd 27 5 10 6000 15 6200 1600 50 81 Dsi 8400 6600 20 18 1750 20 Potosi Mountain 2450 Dsi 5800 5 85 8200 31 6400 1850 Mmy 10 15 55 2400 12 23 8 15 Cn 24 25 15 17 10 14 18 30 2450 23 80 Mmb Mi 5000 1500 MPb Mmb Mmy Mi 17 45 Mmb MPb 12 2100 13 37 26 61 10 2350 55 Mma 5600 8000 Oms 21 47 5000 4 Mmy 1850 Mmb 5000 Cbku 41 53 78 2050 Qa 23 Qa 8200 24 5000 1950 40 2350 Trm 26 5200 Ja 1700 49 58 10 1800 25 86 4 49 16 1850 8200 56 22 Mmd Oms Qa Ja 1750 1550 7600 MPb 70 MPb 31 2000 38 1900 Ds 31 1700 45
MPb 7800 1750 Ja 2150 7400 Mmy 1900 4716 14 8 Mmb MPb Mmb 35 9 25 Mmd 13 1700 24 1600 24 MPb1450 37 Mma 12 7800 MPb 61 7600 27 Dsi Ja 1650 28 MPb 20 27 Mma 22 1550 2200 Mmb Mmy 38 MPb Ja 36 8000 69 2150 30 1400 30 5000 Qa
2350 Mmb 1850 7800 Ja
2300 Ja 64 22 2250 63 1450 1950 32 36 Mmy 22 70 20 7000
7000 7200 30 56 25 Mmy 5400 31 1800 37 2150 17 18 24 20 43 80 1415 33 21 Mm 1800 82 2250 5 25 Ds 30 1700 55 6400 40 31 6800 35 1700 12 7200 1550 65 1900 27 60 12 1700 19 2200 58 21 16 63 6000 75
2150 20 25 15 1450 2100 2200 31 77 19 4800 25 6600 83 12 5800 1600 66 75 2 1950
1400 6200 MPb 35 27
1500
1650 2050 2100 57 60 85 Ja Ja 36 54 MPb 4600 2000 22 26 20 1750 28 1800 46 64 4800 5000 33 5200 4600 1450 39
1850 51 1800 38 5600 402000 45 41
40 60 1350 69 34 1500 MPb 47 5400 55 16 17 43 44 Ja 5000 70 45 1550 10 6000
1950
5800 20 49 45 1850 32 1600 1450 1750 00 1450 63 4600 18 46
1350 Trc 1950 22
28 1650 60 60 4400
1700 2000 4800 1400 1500 1800 1900 35 27 1800 29 1650 33 5600 1750
1450 1800
1350 1700
5200
5000
1550
1500
1850
5400
1850
000 0 REFERENCE Burchfiel, B.C., Cameron, C.S., and Royden, L.H., 1997, Geology of the Wilson Cliffs–Potosi Mountain Area, Southern Nevada: International Geology Review, v. 39, no. 9, p. 830–854.
Burchfiel, B.C., Cameron, C.S., and Royden, L.H., 2010, Wilson Cliffs and Potosi Mountain Area, Nevada: Geological Society of America Digital Map and Chart Series 9, doi: 10.1130/2010.DMCH009. For permission to copy, contact [email protected]. ©2010 The Geological Society of America. All rights reserved.