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ARIZONA
NE
VA
DA
COLORADONEW MEXICO
WYOMINGCOLORADO
IDAHONEVADA
Great Sal t Lake
Lake Powell
Be a
ver R
iver
SevierBridgeReservoir
UtahLake Strawberry
Reservoir
StarvationReservoir
Strawberry River
Weber River
Bear
Lake
Flaming Gorge Reservoir
Lake Fork River
Duche sne River
Green
Riv
er
Wh it e River
Uinta R
iver
Green River
Provo River
Frem
ont River
Duchesne River
Virgin R
iver
San Juan River
SevierLake(Dry)
Price River
San Raphael River
Green River
Color
ado Rive
r
Colorado River
Dirty Devil River
Sevi
er Rive
r
Sevi
er River
Escalante River
Paria River
80a
80b
80a 80h
80a
13c80c
13i13b
19f
19f
19d
19d
18d
13a
13g
13b
18c13c
19d
13g
19g
13a13a
18d
13c
19g
19d
13f
13f
19d19d
19d
19d 19d
13d13c
19g
13b
13c
13b
13b
13b
13c
13a
13d
13c
19g
13c
13d 13c
19d
13d13c
13c
19d
13g13d
13c13c
13b
13d
13b 19g19c
19c
13g
13b19b
13d
18a19f
18a
19a
13d
18c
19g
18a
19d
13e
13c
20c19a
13d
19b
13e
13e
19a
13d
19g
19b
19d
19a
20g
13d
20c
13b
13e13d
13d
13a
13e
20f13a
13d19g
13c
19f
13g
13g
13g
13g
19d
13c
13c
13d
13c
13c
20e
19d
13d13d
13c
19a
13c
13a
13c
13d
19g
13d
19g
20c
19d
13d
13d
20c
20c
20b
20b
13d
13d
13d13a
20c13a
13g
19d13d13d
13b
13b
13d
20c
19e
20d
13d
19d
13d13c
19g
20h19e
20d
20d
19e
20c
19a
19g
20c
19g
19e
20c
21c21b
21a
19e
13a
13b
13b19g
21a
19f
19g
19e
13d
19e
20e 19e
20a
19e
20e19f
21c
19e
14a
21b
21b
20c
14b 14a
20h
20a
20e
20c 20h20e 20h
20c20h
20c
20h
80
17
18
18
13
21
19
20
20
20
14
14 2222
21
13g
14b
80b
13c
13c
14c
19a
19d
19f
19f
8080b
80b
80h
13c80b
13d
80 80 80
13d
13d
13d
80i
114° 113° 112° 111° 110° 109°
114° 113° 112° 111° 110° 109°
37°
38°
39°
40°
41°
42°
37°
38°
39°
40°
41°
42°
Salt Lake City
Beaver
Milford
BrighamCity
Castle Dale
GreenRiver
Coalville
Kamas
Duchesne
Evanston
Farmington
Fillmore
BlackRock
Delta
Green River
HeberCity
Junction
Kanab
Kemmerer
LoaHanksville
Logan
Randolph
Tremonton
Snowville
Rosette
Lucin
Manila
Manti
Moab
CrescentJunction
Monticello
La Sal
Morgan
Nephi
Ogden
Huntsville
Panguitch
Henrieville
BigWater
Escalante
Antimony
WidtsoeJct
Boulder
Torrey
Parowan
Lund
Enterprise
Provo
Richfield
SaintGeorge
Springdale
Tooele
Vernal
Roosevelt
Altamont
Ouray
TroutCreek
Callao
Wendover
SpanishFork
Santaquin
AmericanFork
Garrison
Gandy
CedarCity
HamlinValley
Blanding
Bluff
MexicanHat
HiteCrossing
Price
Rock Springs
Dugway
RainbowBridge NM
Natural Bridges NM
Hovenweep NM
DinosaurNM
CanyonlandsNP
Arches NP
GlenCanyonNRA
CapitolReef NP
BryceCanyonNP
Grand Staircase-Escalante NM
Zion NP
CedarBreaks NM
Level III ecoregionLevel IV ecoregion
County boundaryState boundary
80 Northern Basin and Range80a Dissected High Lava Plateau80b Semiarid Hills and Low Mountains 80c High Elevation Forests and Shrublands80h Saltbush-Dominated Valleys80i Sagebrush Steppe Valleys
20 Colorado Plateaus (continued)20g Northern Uinta Basin Slopes20h Sand Deserts
21 Southern Rockies 21a Alpine Zone21b Subalpine Forests21c Dry Forests and Shrublands
20 Colorado Plateaus 20a Monticello Upland20b Shale Deserts 20c Semiarid Benchlands and Canyonlands20d Arid Canyonlands20e Escarpments 20f Uinta Basin Floor
18 Wyoming Basin 18a Rolling Sagebrush Steppe18c Wet Valleys18d Semiarid Bear Hills
19 Wasatch and Uinta Mountains19a Alpine Zone19b Uinta Subalpine Forests19c Mid-elevation Uinta Mountains19d Wasatch Montane Zone19e High Plateaus19f Semiarid Foothills19g Mountain Valleys
13 Central Basin and Range 13a Salt Deserts13b Shadscale-Dominated Saline Basins 13c Sagebrush Basins and Slopes 13d Woodland- and Shrub-Covered Low Mountains 13e High Elevation Carbonate Mountains13f Moist Wasatch Front Footslopes13g Wetlands13i Malad and Cache Valleys
14 Mojave Basin and Range14a Creosote Bush-Dominated Basins14b Arid Footslopes14c Mountain Woodland and Shrubland
30 60 mi0
60 120 km0
51015
102030Albers Equal Area Projection
Standard parallels 38 ° N and 41 ° N
Ecoregions of Utah
INTERIOR—GEOLOGICAL SURVEY, RESTON, VIRGINIA—2001