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A A′

27'30 114°07'30" R. 21 W. R. 20 W. " R. 20 W. R. 19 W. R. 19 W. R. 18 W. R. 18 W. R. 17 W.

R. 21 W. R. 20 W. R. 20 W. R. 19 W. R. 18 W. R. 17 W.

114°30'

35°52'30"

36°

57'30"

35°52'30"

55'

36°

114°30' 22'30" 15' 114°07'30"

T. 30 N.

T. 29 N.

27'30" 25'

55'

25' 22'30" 20' 17'30" 15' 12'30” 10'

57'30"

T. 29 N.

T. 30 N.

20' 17'30" 12'30" 10'

3980000m.N. 

3975000m.N. 

3985000m.N. 

730000m.E. 740000m.E. 750000m.E. 

3985000m.N. 

3980000m.N. 

3975000m.N. 

730000m.E. 750000m. 7 E. 40000m.E. 

Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not 

imply endorsement by the U.S. Government

This map was printed on an electronic plotter directly from digital files. Dimensional calibration may vary 

between electronic plotters and between X and Y directions on the same plotter, and paper may change 

size due to atmospheric conditions; therefore, scale and proportions may not be true on plots of this map.

For sale by U.S. Geological Survey, Information Services, Box 25286, Federal Center, Denver, CO 80225, 

1–888–ASK–USGS

Digital files available at https://doi.org/10.3133/sim3372

Suggested citation: Howard, K.A., Priest, S.S., Lundstrom, S.C., and Block, D.L., 2017, Geologic map of the 

northern White Hills, Mohave County, Arizona: U.S. Geological Survey Scientific Investigations Map 3372, 

pamphlet 31 p., scale 1:50,000, https://doi.org/10.3133/sim3372.

ISSN 2329-132X (online)

https://doi.org/10.3133/sim3372

Geologic Map of the Northern White Hills, Mohave County, Arizona

By

Keith A. Howard, Susan S. Priest, Scott C. Lundstrom, and Debra L. Block

2017

APPROXIMATE MEAN CONTOUR INTERVAL 40 FEET DECLINATION, 2017

11 / ° 1 2

MAGNETIC NORTH

TRUE NORTH

Base from U.S. Geological Survey, Garnet Mountain NW, 

Senator Mountain NE, Senator Mountain NW, 1989, 1:24,000

Transverse Mercator projection; 1927 North American Datum

Geology mapped by K.A. Howard, 1997−2009, and S.C. Lundstrom, 1997. Assisted 

by Zach Anderson, 2009. Includes selected structural data from Lucchitta (1966), 

Blacet (1975), Laney (1979a,b), Cascadden (1991), Duebendorfer and Sharp 

(1998), Blythe and others (2010), and Anderson and others (2013)

GIS database and digital cartography by S.S. Priest and Debra L. Block

Edited by Taryn A. Lindquist; digital cartographic production by Kathryn Nimz

Manuscript approved for publication November 21, 2016

Prepared in cooperation with the

National Park Service and Bureau of Land Management

U.S. Department of the Interior

U.S. Geological Survey

Scientific Investigations Map 3372

Pamphlet accompanies map

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MESOPROTEROZOIC

PALEOPROTEROZOIC

CENOZOIC

Upper

Miocene

Lower

Pliocene

Middle

Miocene

ANCIENT INTRUSIVE AND METAMORPHIC ROCKS

Local Unconformity

Angular Unconformity

Erosional Unconformity

Erosional Unconformity

Erosional Unconformity

CORRELATION OF MAP UNITS

[See Description of Map Units (in pamphlet) for precise unit ages]

Miocene

Pliocene

Pleistocene

Holocene

Tertiary

(Neogene)

Quaternary

Miocene and

Proterozoic

SEDIMENTARY AND VOLCANIC ROCKS AND DEPOSITS 

Nonconformity Below Miocene Rocks

LIST OF MAP UNITS

[See Description of Map units (in pamphlet) for complete unit descriptions]

SEDIMENTARY AND VOLCANIC ROCKS AND DEPOSITS

Talus deposits (Quaternary)

Landslide and colluvium deposits (Quaternary)

Piedmont alluvium

Youngest alluvium (Holocene)

Younger alluvium (Holocene) 

Intermediate-age alluvium (Pleistocene)

Erosional Unconformity

Calcrete (Pleistocene and Pliocene)

Old piedmont alluvial deposits

Old alluvium (Pleistocene and Pliocene)

Older alluvium (Pliocene)

Erosional Unconformity

Ancestral Colorado River deposits (lower Pliocene)

Bullhead Alluvium

Bullhead Alluvium, undivided 

Sand 

Gravel

River deposits of uncertain stratigraphic position

River deposits, undivided 

Sand

Gravel 

Limestone-block rubble (lower Pliocene)

Erosional Unconformity

Cemented alluvial conglomerate of White Elephant Wash (lower Pliocene)

Deposits of Hualapai Wash (lower Pliocene)

Hualapai Limestone (upper Miocene)

Muddy Creek Formation(?) (upper Miocene)

Mudstone

Gypsum

Conglomerate, undivided (upper and middle Miocene)

Upper conglomerate (upper Miocene)

Lower conglomerate (upper and middle Miocene)

Tephra bed(s) (Miocene)

Young olivine basalt (upper Miocene)

Olivine basalt (middle Miocene)

Intrusive basalt (Miocene)

Angular Unconformity

Mount Davis Volcanics (middle Miocene)

Basaltic andesite

Olivine-pyroxene basalt 

Volcanic-clast conglomerate

Local Angular Unconformity

Sedimentary breccia and conglomerate, undivided (middle Miocene)

Old conglomerate

Megabreccia

Welded tuff (middle Miocene)

Breccia, conglomerate, granite, and gneiss, undivided (Miocene and Proterozoic)

Nonconformity Below Miocene Rocks

ANCIENT INTRUSIVE AND METAMORPHIC ROCKS

Diabase (Mesoproterozoic)

Granite of Burro Spring (Mesoproterozoic)

Leucogranite of Greggs Hideout (Paleoproterozoic)

Gneiss, undivided (Paleoproterozoic)

Mafic and quartz-poor gneiss

Leucogranitic gneiss

Paragneiss, garnet fresh

Paragneiss, garnet partly retrograded

Paragneiss, garnet retrograded

EXPLANATION OF MAP SYMBOLS

[Faults and folds are solid where location is certain; dashed where location is inferred; dotted 

where location is concealed. Queries added where identity or existence may be questionable]

Contact—Solid where location is certain

Faults

Normal fault—Bar and ball on downthrown side. Showing dip where known

Low-angle normal fault—Half-circles on upper plate

Folds—Showing trace of axial surface and direction of plunge where appropriate

Anticline

Syncline

Synform

Strike and dip of bedding and volcanic layering

Inclined—Showing dip where known

Horizontal

Strike and dip of foliation—Metamorphic or tectonic foliation in gneiss; compaction 

foliation in welded tuff

Inclined—Showing dip where known

Horizontal

Vertical

Slickenlines—Showing trend and plunge

Form lines on lithologic layering—Showing dip direction or verticality as 

interpreted from aerial imagery

Inclined

Vertical

Form line showing general orientation of metamorphic or tectonic foliation in 

cross section

Drill hole—Approximate location (see table 1)

Fluvial current direction—From imbrication and crossbedding in ancestral Colorado 

River deposits

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SEA

LEVEL

SEA

LEVEL

SEA

LEVEL

1000

–1000

–2000

–3000

METERS

A

D E T R I T A L V A L L E Y

Detrital

Wash

 Trail Rapids

Wash Temple

Wash

T E M P L E B A S I N

Salt Spring 

Wash

Aꞌ

Hualapai

Wash

“LOST

BASIN

RANGE” FEET

–2000

–4000

4000

–6000

–10,000

–8000

2000

1000

–1000

–2000

–3000

METERS

LOST BASIN RANGE FAULT

nonmagnetic granite or gneiss

(some Xgr lithotype in this zone) ICEBERG CANYON FAULT

SALT SPRING FAULT

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