Dakota Formation
Prairies
Cumberland Plateau
Cumberland Mountains
archicontinent
lithogenesis
Plains
Cornhusker State
Nebraska
NE
Neb.
slope
incline
side
Thomomys bottae
valley pocket gopher
Bad Lands
Badlands
Crotalus lepidus
Badlands Wilderness
rock rattlesnake
Northwest
northwestern United States
Rockies
Rocky Mountains
Cascade Range
western buttercup
Allegheny Mountains
Alleghenies
elevation
geoformation
natural elevation
Guiana
Ranunculus occidentalis
pisolite
Carlsbad Caverns
Laramide
Great Divide
neovolcanite
Continental Divide of the Americas
Acoma
Andes
clove
geolimnological
palaeosubduction
Grand Teton
Old Red Sandstone
Sturnella neglecta
genus Lichanura
Edmontonian
Centennial State
Colo.
Colorado
CO
western meadowlark
Lichanura
Jemez
genus Castoroides
devil's corkscrew
Teton Sioux
Lakota
Teton
Castoroides
paleolatitude
Teton Dakota
Baja California
Lower California
head
Baja California Peninsula
geosorbent
midwestern
Casper
Paleo-Amerind
Equality State
paleogeology
WY
Wyoming
finicretaceous
Lynx canadensis
Paleo-Indian
Wyo.
Paleo-American
Canada lynx
tor
WI
Badger State
Alaska Range
Lion Rock
Wisconsin
Wisc.
Wis.
Astragalus alpinus
alpine milk vetch
palaeoflora
eastern meadowlark
hiatus
paleoslope
economic geology
Sturnella magna