plain
expanse
grassland
plateau
prairie
desert
field

forest
cactus
tree
bush
thicket
bramble

boulder
rock
quarry
stone

mountain
hill
mesa
cliff
bluff
crag
ridge
valley
canyon
gorge

oasis
meadow

cave

river
stream
creek
tributary
brook
delta
inlet
sound
cove

lake
ocean
pond
basin
lagoon
pit
swamp
tarpit
mire