MAP 161-S
NEVADA GEOTHERMAL RESOURCES
with shaded relief
Prepared in cooperation with the Nevada Division of Minerals and the U.S. Department of Energy
McDermitt
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Ranch
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Owyhee Desert
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Sand Spring Valley
Deep Well
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Silver Peak
Goldfield
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Pahranagat Valley
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Caliente
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( Hiko
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Crystal
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( Springs
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(!
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I
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>55 Kilovolts
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Climax
Mine
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Yucca Flat
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++
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Coyote Spring Valley
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Yucca Mountain(
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Frenchman Flat
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30
60 Kilometers
Contour interval 1000 feet
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Mercury Valley
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(!
!!
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!!
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Meadows
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5. Southern Methodist University (SMU) (David Blackwell and Maria Richards,
http://www.smu.edu/geothermal)—This dataset includes geothermal temperature and
gradient data from exploration drill holes and heat flow holes. These data are maintained by
the Geothermal Laboratory at Southern Methodist University. Wells with a gradient of
25°–100°C/km are considered warm on Map 161, and those ≥100°C/km are hot. Drill holes
information was checked against topographic maps, NWIS site data, and GBCGE
fieldwork.
6. U.S. Geological Survey (Sass et al., 1999, http://pubs.usgs.gov/of/1999/of99425/webmaps/home.html)—This database contains additional heat flow data for wells in
Nevada. The wells in this database were processed in the same manner as those from the
SMU database. The subset of data used in this map is located at http://www.nbmg.unr.edu/
geothermal/mapfiles/USGS-gradient.xls.
13.
GBCGE
Visited
Sites
(http://www.unr.edu/geothermal/MicroDocs/GBCGE_
Geothermal11-09.xls)—Many sites were visited during field investigations between 2002 and
2008. Sites were selected for sampling based on databases and publications that reported a
thermal feature present with little, no, or poor data. Most sites visited did indeed have a
thermal spring or well that was subsequently sampled. In some cases, it was discovered
that the information in the database or publication was incorrect, and there was nothing
(incorrect location) at that location, a cold (rather than thermal) spring or well, a defunct well,
or a dry spring. In order to capture this information, these points are plotted separately on
this map to indicate which of these four incorrect data types appear in the historical data or
publications.
11.
GBCGE
Shallow
Temperature
Surveys
(http://www.unr.edu/geothermal/
tgrad.html)—This dataset contains shallow (2 meters depth) thermal anomaly data for five
study areas: Desert Queen, Desert Peak, Rhodes Marsh, Teels Marsh, and Tungsten
Mountain. Only temperatures >20° C are shown on Map 161 as anomalies.
12.
GBCGE
Great
Basin
Groundwater
Geochemical
Database
(http://www.unr.edu/geothermal/GeochemDB.htm) —The Great Basin Center for Geothermal
Energy made changes to locations and names in the above datasets (Garside, 1994; Trexler
et al., 1983; NWIS / WATSTORE; and GEOTHERM), based on a variety of criteria. Site
Dry Lake
!
( Spring
!
(
Valley of Fire
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(
!
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(
Dry Lake Valley (Clark)
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((
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((
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White Rock
!
( Spring
!
( Red
(
(
Spring
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((
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Las Vegas
Valley
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!
( Browns
Spring
(
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W Lake Mead
(
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(
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(
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Black Canyon
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Goodsprings
(
Ivanpah
Valley
References
(
(
Blackwell, D.D., and Chapman, D.S., 1977, Interpretation of geothermal gradient and heat
flow data for Basin and Range geothermal systems: Geothermal Resources Council
Transactions, v. 1, p. 19–20.
Blackwell, D.D., and Richards, M., Southern Methodist University (SMU) geothermal
database, http://www.smu.edu/geothermal/georesou/nevada.htm.
Davis, D.A., and Hess, R.H., 2009, Nevada geothermal well database list: NVGEOWEL (rev.
2009): Nevada Bureau of Mines and Geology List 5.
Garside, L.J., 1994, Nevada low-temperature geothermal resource assessment: Nevada
Bureau of Mines and Geology Open-File Report 94-2, 108 p., plate, scale 1:1,000,000.
Garside, L.J., and Schilling, J.H., 1979, Thermal waters of Nevada: Nevada Bureau of Mines
and Geology Bulletin 91, 163 p., plate, scale 1:1,000,000, http://www.nbmg.unr.edu/
dox/b91/.
GeothermEx, Inc., 2004, New geothermal site identification and qualification: Report
prepared by GeothermEx, Inc., Richmond, CA, for the California Energy Commission
under the Public Interest Energy Research (PIER) Program, Final Project Report 50004-051, http://www.energy.ca.gov/pier/project_reports/500-04-051.html.
Houghton, J.G., Sakamoto, C.M., and Gifford, R.O., 1975, Nevada's weather and
climate: Nevada Bureau of Mines and Geology Special Publication 2, 84 p.
NV Energy, 2010, NV Energy portfolio standard annual report—compliance year 2009 (table
18), April 2010 (available from the Public Utilities Commission of Nevada), 72 p.
Sass, J.H., Priest, S.S., Blanton, A.J., Sackett, P.C., Welch, S.L., and Walters, M.A., 1999,
Geothermal industry temperature profiles from the Great Basin (online version 1.0): U.S.
Geological Survey Open-File
Report 99-425, http://pubs.usgs.gov/of/1999/of99425/webmaps/home.html.
Shevenell, L., Garside, L.J., and Hess, R.H., 2000, Nevada geothermal resources: Nevada
Bureau of Mines and Geology Map 126, scale 1:1,000,000.
Shevenell, L., and Garside L.G., 2003, Nevada geothermal resources: Nevada Bureau of
Mines and Geology Map 141, scale 1:750,000.
Shevenell, L., and Garside L.G., 2005, Nevada geothermal resources (2d ed.): Nevada
Bureau of Mines and Geology Map 141, scale 1:750,000.
Shevenell, L., Zehner, R., Price, J.G., and Wells, L., 2010 (in preparation), Geothermal
energy, in Price, J.G., Muntean, J.L., Davis, D.A., and Shevenell, L., The Nevada
mineral industry 2009: Nevada Bureau of Mines and Geology Special Publication MI2009, p. 142–150.
*
*
4. Trexler et al. (1983) map—Any sites not captured by the previous four databases were
digitized from this map.
Virgin River
Grapevine
(
!!
(
shallower than 30 meters were excluded, as these can give falsely high gradient values.
Data were obtained from the SMU website in May 2009.
10.
Great Basin
Center for Geothermal Energy (GBCGE) Direct Use
(http://www.unr.edu/geothermal/MicroDocs/ Map161_DirectUse.xls)—The Great Basin
Center for Geothermal Energy has compiled all known direct use locations, year of initial
operation, and usage (unpublished data, L. Garside, L. Shevenell, and R. Penfield).
U.S. BLM
Well SHV-1
Searchlight
(
(
Cottonwood
Valley
(
(
(
(
Stewart, J.H., and Carlson, J.E., 1978, Geologic
U.S. BLM
Tenmile Well
map of Nevada: U.S. Geological Survey map,
scale 1:500,000.
Trexler, D.T., Flynn, T., Koenig, B.A., and Ghusn, G., Jr.,
1983, Geothermal resources of Nevada: Map produced by
the National Geophysical Data Center, National Oceanic and
(
((
(
(
((
(
(
(
Laughlin
Atmospheric Administration for the Geothermal and Hydropower
(
(
(
(
Technologies
Division,
U.S.
Department
of
Energy,
http://www.nbmg.unr.edu/geothermal/mapfiles/noaa.pdf.
U.S. Geological Survey, GEOTHERM database, http://www.nbmg.unr.edu/
geothermal/geochemdata/geotherm.htm.
U.S. Geological Survey, USGS water data for Nevada: U.S. Geological Survey
National Water Information System—Web Interface, http://waterdata.usgs.gov/
nv/nwis.
U.S. Geological Survey, 1977, WATSTORE—National WATer Data STOrage and REtrieval
System [data for Nevada]: U.S. Geological Survey database.
*
*
*
*
*
3. National Water Information System (NWIS) / National WATer Data STOrage and REtrieval
System (WATSTORE) (http://waterdata.usgs.gov/nwis)—U.S. Geological Survey chemical
data for groundwater. This database incorporates recent and historical measurements of
temperature, geochemistry, conductivity, etc. Thermal gradients could not be calculated for
many of the well records, but they were retained in the database if the well temperature was
>10°C above average annual surface temperature. Data were obtained from the USGS
website in August 2005.
(
(
( Desert
(
NWR
(
(
!
( Springs
Pahrump Valley
San Emidio Desert (1994, closed) - vegetable dehydration
9.
Nevada Bureau of Mines and Geology (NBMG) (http://www.nbmg.unr.edu/
dox/mi/09.pdf)—The Nevada Mineral Industry 2009 report (Shevenell et al., in preparation)
and NV Energy (2010) include power plant nameplate (gross) generating capacity and the
MW reported by NV Energy (2010) as in service in 2009. Nameplate capacity is the
manufacturer's rating of equipment output capacity as reported to the Nevada Division of
Minerals by the plant operators (as of February 2010) and does not necessarily reflect the
capability of the currently developed resource. These nameplate capacities are estimates,
and several different values can be found in the literature. Generator nameplate capacity
refers to the generator size, but not the turbines or actual capacity of the power plant. There
are no public documents breaking down nameplate capacity of the turbines or gross power,
so these numbers may not adequately reflect actual generation (Dan Fleischmann, pers.
comm., June 2010).
(
(
!
( Narrows
Base Map: NBMG Map 43 (1972)
8.
GeothermEx
(http://www.energy.ca.gov/pier/project_reports/500-04-051.html)—This
dataset gives the common names for gradient hole anomalies within Nevada. For Map 161,
gradient hole anomalies are assigned to regions identified by GeothermEx that were not
otherwise included in the map. For instance, the Fox Mountain geothermal region is not
identified by database wells or springs—the name (and anomaly) are sourced from the
GeothermEx database.
!
( Indian
Springs (I.S.V.)
(
(
Projection: NAD 1983 UTM Zone 11
7. Nevada Geothermal Well Database List—NVGEOWEL (Davis and Hess, 2009,
http://www.nbmg.unr.edu/geothermal/mapfiles/nvgeowel.html)—This database lists all
geothermal wells permitted by the Nevada Division of Minerals (since 1985), as well as
historical permitted wells. These data are on file at the Nevada Bureau of Mines and
Geology (NBMG), last updated August 2009. UTM locations were obtained using section
information or distance from section line data provided in the permit application. Hence,
many locations are approximate. Temperatures are not known for all wells in this database.
!
( Juanita
D
(
(
(
(
*
*
15
40 Miles
(
(
Spring
*
*
Warm Springs Valley (early 1990s, closed) - aquaculture
20
Virgin Valley
*
*
*
Gerlach (1989, closed) - spa, pool, space heating
0
10
*
*
Jackpot (1988, closed) - aquaculture
0
*
*
Hobo Hot Springs (1987, closed) - aquaculture
+
+
+
+
K
+
+
Indian Springs Valley
*
*
Carlin (1986, closed) - space heating
*
*
Scale 1:750,000
Duckwater Spring (1982, closed) - aquaculture
Amargosa Desert
(
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(((((
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(( (
((
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(
Moapa Valley
(
(
((
(
(
(
!
(
!
(
!
(!
!
((
!
(
(
(
*
*
City of Wells (1982) - geothermal-fluid sourced heat pump
N
(
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((
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((
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*
*
(
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(
(
(
Crater Flat
*
*
((
(
(
(
(
*
*
!
(
*
*
H
Tippipah
Spring
(
!
(
!
(
!
(
!
(
!
(
* *
*
*
Grapevine
!
( Mountains
*
*
Bradys (1992, 26.1 | 21.5 MW)
((
(
(
!
(
Beatty
*
*
(
(
*
*
*
11
*
*
Stillwater (1989, 47.2 | 47.2 MW)
10
Sarcobatus Flat
*
*
8
* Salt Wells (2008, 18 | 23.6 MW)
*
*
* Blue Mountain (2009, 49.5 | 49.5 MW)
*
*
*
Dixie Valley (1988, 62 | N/A MW)
*
*
7
!
(
USGS
Well PM-3
Caliente (1979) - spa, pool, space heating
2. GEOTHERM (for Nevada) and other unpublished NBMG data, including locations digitized
from
7.5'
topographic
maps
(http://www.nbmg.unr.edu/geothermal/geochemdata/
geotherm.htm). GEOTHERM is a U.S. Geological Survey database, active until 1983,
designed to host the geology, geochemistry, and hydrology of geothermal sites. Map 161
includes wells and springs identified as thermal in GEOTHERM, as well as thermal features
digitized on 7.5' topographic maps. Thermal gradients could not be calculated for many of
the well records, but records were retained if the well temperature was >10°C above average
annual surface temperature.
!
(
Spring
Bradys Hot Springs (1978) - vegetable dehydration
1. Garside (1994) (http://www.nbmg.unr.edu/geothermal/geochemdata/ ofr94_2/ofr942.htm)—This dataset includes selected spring and well locations and chemical analyses for
most of Nevada's geothermal areas. The sources for this dataset are selected entries from
Garside and Schilling (1979), GEOTHERM, and National WATer Data STOrage and
REtrieval System (WATSTORE).
(
(
(
(
(
!
(
(
(
(
((
(
(
!
( Sand
Spring (S.S.V.)
Spring
!
(
Wabuska (1972, closed) - space heating, aquaculture
This map is a revision of previous map versions (e.g., Map 126, Shevenell et al., 2000; Map
141, Shevenell and Garside, 2003 and 2005) and is a compilation of several databases
containing information on thermal springs, geothermal wells in the literature, geothermal
wells permitted by the State of Nevada, and thermal gradient wells. Where sufficient data
were available from the individual databases, all springs and wells with a temperature >10°C
above average annual surface temperature and >20°C absolute were retained in the
database, as were those noted as warm or hot (see Houghton et al., 1975, for a map of
mean annual surface temperatures). Gradient wells with maximum temperatures >10°C
above average annual surface temperature, and with temperature gradients of >25°C/km
were retained in the database. Thus, sites potentially useful for direct-use applications (e.g.,
onion drying, aquaculture, spas, space heating, and gold heap leaching) are included on the
map. Questionable records were eliminated from each database. The categories of thermal
sites included on the map are (1) springs with temperatures of 20°–37°C or those identified
as warm, (2) springs with temperatures >37°C or those identified as hot, (3) wells with
temperatures of 20°–37°C or those identified as warm, (4) wells with temperatures >37°C or
those identified as hot, (5) selected thermal gradient wells as described above, and (6)
geothermal wells permitted by the State of Nevada. Thermal waters encountered in mines
are indicated with the well symbol. The databases plotted on this map were obtained from
the following sources:
!
(
Delmues
Springs
Bennett
Springs
!
( Cedar
(
Flatnose
!
( Ranch
Panaca - Pioche
Lime
Spring
(
(
)"
*
*
)"
!
(
Reveille Valley
*
*
))))
)")"
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
**
*
*
*
*
**
*
*
*
*
*
*
* *
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
**
**
*
*
*
**
*
*
*
*
*
*
*
* *
*
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*
*
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*
*
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*
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*
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*
*
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*
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*
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* *
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**
*
*
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*
*
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Moapa Warm Springs (before 1964, closed) - spa, pool
Spring (R.V.)
Alkali Hot Spring
(
(
*
*
*
*
Bowers Mansion (1962) - pool
!
(
!
( Pyramid
Cactus Flat
*
*
*
*
*
))))
*
*
*
*
*
*
*
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*
*
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*
*
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*
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*
*
*
Ash Springs (1960s, closed) - pool
(
(
(
(
*
*
))))
*
*
Baileys Hot Springs (Beatty) (1906) - spa
Spring (D.L.V.)
S Railroad Valley
*
*
*
**
*
Moana Hot Springs (1905) - pool, space heating
!
(
*
*
))))
))))
*
*
*
*
Coyote Hole
Spring (C.F.)
!
( Coyote
!
(
Reveille
!
( Mill
*
*
*
))))
))))
!
(
*
*
*
*
Lawtons Hot Springs (1886, closed) - spa, pool
!
(
**
*
*
*
*
**
*
*
*
*
*
*
*
*
High voltage DC
Dry Lake Valley (Lincoln)
(
(
*
*
)"
))))
*
*
*
*
**
*
**
*
*
*
*
*
*
*
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*
*
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*
*
*
*
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*
*
*
*
*
*
*
*
*
*
*
*
*
*
(
(
(
(
( Coal
(
Valley
*
*
*
*
*
*
*
*
*
*
**
*
*
!
(
Tonopah
Alum Mine
Hammond
!
( Ranch
Springs
*
*
*
*
*
*
*
*
Darroughs Hot Springs (1883) - spa
Nanny Goat
Springs
*
*
Carson City (1880) - pool
!
( Pony
Abel Spring
*
*
*
*
*
*
Elko (1868) - pool, space heating, laundry
!
(
*
*
*
*
Walleys Hot Springs (1862) - spa, pool, space heating
!
(
!
(
!
(
!
(
!
(
(
!!
+
+
M
+
+
N
+
+
O
+
+
P
+
+
Q
+
R
+
S
+
+
T
+
+
U
+
+
V
+
+
Coyote Hole !
(
Spring (R.V.) !
(
Saulsbury Wash
*
*
*
*
**
*
* *
*
** *
*
* *
*
*
*
*
*
*
*
*
*
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*
*
*
*
*
*
*
*
*
*
*
*
**
*
**
*
**
*
*
*
**
*
** *
*
*
*
")
*
*
*
*
Steamboat Springs (1860) - spa, space heating
!
(
! Sunnyside
(
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* *
*
*
*
*
*
*
*
+
+
B
+
+
C
+
+
D
+
+
E
+
+
F
+
G
+
H
+
+
+I
+
J
+
+
K
+
+
Butte
!
( Spring
*
*
*
*
*
*
*
*
*
*
*
* *
*
*
*
*
*
)))
*
*
!
(
(
(
(
L
(
(
(
(
West Stone
Cabin
!
(
Valley
Direct Use Applications
A
Chimney
!
(
!
( Hot Springs
(
(
*
*
*
*
*
*
*
*
9
White River Valley
Rattlesnake
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Soda Lake (1987, 26.1 | 23.1 MW)
Hot Springs
(
*
*
*
*
)))
*
*
*
*
6
Empire (1987, 4.8 | 3.8 MW)
*
*
*
*
*
*
*
*
*
**
*
**
*
*
*
*
*
*
*
*
*
*
5
Steamboat (1986, 147.2 | 107.5 MW)
Moorman
Spring
!
(
!
( Blue Eagle
!
(
(
Springs
(
(
!
(
!
( Lockes
!
(!
(
*
*
*
*
*
*
*
*
*
*
Desert Peak (1985, 23 | 19 MW)
4
*
*
*
*
3
Beowawe (1985, 16.6 | 17.7 MW)
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
(The utility lines are shown with
approximate locations, which may
be inaccurate by a kilometer or more.)
Hot Creek Valley
!
(
(
(
(
!
( Spring
(
(
Transmission lines
Gradient-hole anomaly (See text, section 8.)
!
(!
(
!
( !
(
!
(!
!
(
(!
!
(
(
(
Hot Creek Canyon
Pearl
Hot Springs (dry)
Areas containing thermal
springs and wells
Mislocated, previously identified as thermal
*
*
*
*
Township & range
*
*
!
(
(
(
Fish Lake Valley
*
*
(
(
(
(
(
!
(!
!
( Ranch
*
**
*
*
*
*
2
Wabuska (1984, 2.4 | 2.1 MW)
))))
*
*
1
*
*
(
(
(
(
Riordan
N Railroad Valley
(
(
!
(
!
(
!
(
Emigrant
Prospect
!
(
!
(
Big Springs
Ranch
!
( Geyser
!
( Ranch
!
(
(
( !
(
!
(
( Hall
(
Power Plants (Year of Initial Operation, Nameplate Capacity | In Service)
*
*
*
*
*
*
*
*
)"
Little Fish Lake Valley
*
*
D
Sand
Spring (F.L.V.)
Nonthermal, previously identified as thermal
Excelsior
!
(
*
*
*
)"
))))
))))))))
* *
*
*
))))
*
*
!
(
!
(
!
(
!
(
!
(
*
*
)"
*
*
The Gap
D
*
*
)
)
(
(
(
(
(
The Cedars
*
*
*
*
*
((
(
Columbus Marsh
*
*
*
))))
"
)")
))))
*
*
)))
)))))))))
*
*
Ranch
(
(
Mine
(
(
Preston !
(
Williams
Hot Springs
E
!
( Indian
Springs (B.S.V.)
S Big Smoky Valley
!
(
!
(
!
(
Duckwater
D
!
( Mosquito
!
(
Monte Cristo Valley
(
(
#
#
V
V
#
#
#
V
V
V
#
V
#
V
#
V
#
V
#
#
V
V
( #
V
(
(
(
#
V
*
*
o
+
+
+
+
*
*
))))
)))) ))))
*
*
o
Warm shallow survey well (20 –37 C)
*
*
#
V
#
V
#
#
V
V
#
V
#
V
#
V
!
(
Teels Marsh
#
V
#
#
V
V
#
#
#
V
V
V
#
V#
V
((
(
(
(
(
!
(
!
(
( Huntoon
(
Valley
Fumarole
Spring
(
Round Mountain
Mine
!
(
Rhodes
VMarsh
#
V#
Whisky Flat
Defunct warm well
!
( Big Blue
( (
(
+
+
+
+
!
(
!
(
!
(
!
(
(
(
(
(
(
Darroughs !
Hot Springs
!
(
!
(
Sodaville
Springs
) Excelsior
)
Defunct hot well
D
*
*
)"
)"
*
*
o
Hot shallow survey well (>37 C)
!
(
!
( Ely
!
(
!
(
*
*
*
*
*
*
*
*
*
Permitted geothermal well
*
*
) Aurora Crater
)
)
Dry warm spring
(
!
*
*
Luning
Dry hot spring
(
!
*
*
o
*
*
)"
)"
*
*
o
Warm heat-flow well (25 –100 C/km)
*
*
o
Hot heat-flow well (>100 C/km)
*
*
#
V
o
*
*
#
V
o
*
*
(
!
(
Warm well (20 –37 C)
*
*
))))
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
))))
*
*
(
(
(
(
(
(
(
(
(
( ((
(
((
(
(
(
(
(
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(
(
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(
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(
(
(
(
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(
(
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(
ne
((
(
(
(
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(
(
(
((
(
( (
( (
(
(
(
(
((
(
(
(
(
(
(
(
(
Robin Penfield, Lisa Shevenell,
Larry Garside, and Richard Zehner
2010
(
(
*
*
*
*
*
(
(
(
NEVADA GEOTHERMAL
RESOURCES
Hot well (>37 C)
!
(
P
S Monitor Valley
(
Gabbs (
(
(
(
Wilson
Hot Springs (dry)
East Walker
River
(
!
(
Dianas
!
(
!
(
!
(
o
!
(
!
( Punch Bowl
!
(
!
(
(
(
Warm spring (20 –37 C)
!
(
!
(
McGill
!
(
!
(
(
(
(
!
*
*
*
*
**
**
*
Bartholomae
Hot Springs
D
!
(
!
(
o
Kern
Mountains
Monte Neva
Hot Springs
!
( Fish Creek Valley
Ranch
(
(
Ione Valley
o
!
(
Spencer
Hot Springs
!
(!
( Charnock
!
(
Gabbs Valley
Rawhide
Hot Springs
Missouri Flat
o
**
*
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* *
*
*
*
*
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
*
*
* *
*
*
*
(
(
Double
Springs
Holbrook
Hot spring (>37 C)
Steptoe Valley
Alligator
Ridge
Mahogany Hills
!
!
(
(
!
!
(
(
(
!
(
(
(
(
(
(
!
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
*
**
*
*
*
*
**
*
*
*
*
**
*
*
*
*
*
**
*
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
**
***
*
*
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
**
*
*
*
*
*
* *
*
*
**
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
**
* *
*
*
*
*
*
** *
*
**
*
* *
*
* **
**
*
*
*
*
*
*
*
*
* *
*
*
*
*
* **
*
**
*
* *
**
*
*
*
*
* *
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* *
**
*
*
*
*
*
*
*
**
*
*
*
*
**
*
*
*
*
*
** *
*
*
*
*
*
*
* *
* *
*
*
*
*
*
*
*
*
*
**
* *
*
*
*
* *
*
*
*
**
* *
*
*
*
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* *
*
*
*
*
*
*
*
**
*
*
*
*
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
**
* *
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* *
*
**
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
**
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
**
**
**
*
*
**
*
*
*
*
*
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
*
*
*
* *
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* *
*
*
*
*
*
*
* **
*
**
*
*
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
**
*
**
*
*
*
*
*
*** *
**
*
*
*
*
*
*
*
*
*
*
**
*
*
*
*
**
** *
*
**
*
**
*
*
*
*
*
*
**
**
*
*
*
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
**
*
*
*
* *
**
* *
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* *
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* *
*
*
*
*
*
*
*
*
** *
*
*
* *
*
*
*
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*
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*
*
*
*
*
**
*
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*
*
*
*
*
*
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
**
*
*
**
**
**
*
* *
*
*
*
*
*
* *
**
*
*
*
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
*
**
*
**
*
*
*
*
*
*
*
*
*
*
* *
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*
*
*
*
*
*
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*
*
*
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*
*
*
*
*
*
*
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*
*
*
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*
*
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* *
* *
* *
*
*
*
*
*
*
*
**
*
*
*
*
*
*
**
*
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*
*
*
*
**
**
*
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
* *
*
*
*
*
* *
* *
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
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*
*
*
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*
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*
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* *
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*
*
*
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*
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Little Humboldt
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Spring
!
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Jarbidge Mountains
*
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(
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Ranch
!
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*
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*
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Robinson
!
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Baltazor
Hot Springs
++
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Hot Creek
Springs
*
*
!
(
(
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* *
*
*
*
*
*
*
Denio
*
*
*
*
*
*
NEVADA BUREAU OF MINES AND GEOLOGY
Acknowledgments
We wish to thank Janice Kukuk and Dustin Hanson for extensive fieldwork support;
Christopher Kratt and Chris Sladek for shallow temperature survey data; Matt Wigand,
Tracey Van Gundy, and other student workers for contributions to the revised geothermal
database; and Matthew Richardson for his cartographic work and contributions. For
providing valuable review comments, we would like to thank Mark Coolbaugh (UNR), Andrea
Guirre (SMU), Maria Richards (SMU), Steve Ponder (NV Energy), and Patrick Wood (NV
Energy). Thanks also to Daphne LaPointe and Charlotte Stock for careful editing.
Details regarding map construction, as well as additional datasets, can be found at
http://www.nbmg.unr.edu/geothermal/mapfiles/readme.htm and http://www.unr.edu/
geothermal.
Suggested citation:
Penfield, R., Shevenell, L., Garside, L., and Zehner, R.,
2010, Nevada geothermal resources [with shaded relief]:
Nevada Bureau of Mines and Geology Map 161,
scale 1:750,000.
Prepared in cooperation with the Nevada Division of Minerals and
the U.S. Department of Energy
PEER-REVIEWED MAP
Office review by Maria Richards, Andrea Guirre, Mark Coolbaugh,
Steve Ponder, and Patrick Wood
Edited by Daphne LaPointe and Charlotte Stock
Cartography and map production in ESRI ArcGIS v9.3
by Matthew Richardson
First Edition, September 2010
Printed by Nevada Bureau of Mines and Geology
This map was printed on an electronic plotter directly from digital files. Dimensional calibration may
vary between electronic plotters and X and Y directions on the same plotter, and paper may change
size; therefore, scale and proportions may not be exact on copies of this map.
For sale by:
Nevada Bureau of Mines and Geology
2175 Raggio Pkwy.
Reno, Nevada 89512
ph. (775) 682-8766
www.nbmg.unr.edu; [email protected]
This product is available free on our website.
1961