Cnemidophorus velox
plateau striped whiptail
tiger rattlesnake
Crotalus tigris
Bufo canorus
Yosemite toad
Thomomys bottae
valley pocket gopher
Guadalupe Mountains
South Park
San Juan Mountains
Colorado Plateau
Piedmont
shebka
Plains
Colorado-like
Colorado
Equality State
west-central
Wyo.
coteau
Grand Canyon National Park
Wyoming
WY
Monument Valley
Lion Rock
paleo-high
Nebraska
NE
altiplano
Range of Light
Cornhusker State
Coloradan
Neb.
AZ
Grand Canyon State
Texas storksbill
Arizona
Erodium texanum
Pueblo
Sonoran lyre snake
Trimorphodon lambda
Black Mountains
Puebloan peoples
canyonside
quebrada
High Sierra
canyoned
Teton Range
prairie rattler
prairie rattlesnake
Crotalus viridis
Western rattlesnake
Longs Peak
Wilson
Mount Wilson
Seven Devils
Pikes Peak
Pike's Peak
Llano Estacado
Prairies
Handies Peak
sierra
canyonland
Astragalus alpinus
versant
Cascade Range
Sierra Nevada
Rockies
Big Sur
southwestern United States
Clifton
divide
Rocky Mountains
Donner Pass
Painted Desert
alpine milk vetch
Southwest
speckled rattlesnake
upcanyon
Four Corners
Keystone
Amherst
Lost River Range
Avondale
Crotalus mitchellii
southwestern
Wolcott
western toad
transplains
Bufo boreas
crest
Sierra Madre Occidental
gill
Sherman
Fulford
Mount Sherman
elevation
premontane
Altiplano