Grand Canyon State
AZ
Arizona
CO
Centennial State
Colorado
Colo.
Chavez Ravine
WY
Wyoming
Equality State
Wyo.
Cataract Canyon
paleocanyon
downcanyon
canyonland
upcanyon
Neb.
Cornhusker State
ID
canyonside
Nebraska
NE
Gem State
Cascade Range
Id.
Idaho
canyoned
Thomomys bottae
Lion Rock
valley pocket gopher
Mount Washington
Andes
Hozomeen
Pine Mountain
Dead Negro Draw
Plains
northwestern United States
pongo
Northwest
Guadalupe Mountains
Colorado River
Mount Rushmore State
South Dakota
Dotsero
Red River Gorge
Coyote State
SD
S.D.
Erodium texanum
Wis.
WI
Badger State
Wisconsin
Lost River Range
Prairies
Texas storksbill
Wisc.
precanyon
Great Divide
Grand Canyon National Park
Continental Divide of the Americas
Miss.
Mississippi
Magnolia State
MS
pine-barren sandwort
longroot
Pacific Northwest
Black Rock Desert
Lichanura trivirgata
rosy boa
Arenaria caroliniana
southeastern United States
Southeast
Trimorphodon lambda
Longs Peak
Casper
Sonoran lyre snake
northeastern United States
Northeast
canyonlike
Guiana
San Juan Mountains
tiger rattlesnake
kotul
Chihuahuan Desert
Monument Valley
Crotalus tigris
Llano Estacado
Uvalde
Yoro
Black Mountains
Gulf States
Pike's Peak
Gulf Coast of the United States
Pikes Peak
Sierra Nevada