-
- "Hills"
well
"Mountains"
natural arch
"Forest"
den tree
"Plains"
rock outcropping
"Swamp"
dam, natural
"Desert"
quicksand
"Coast"
shingle beach - "Hills"
esker
"Mountains"
summit
"Forest"
copse
"Plains"
crater lake
"Swamp"
island, medium
"Desert"
escarpment
"Coast"
sand flat - "Hills"
tor
"Mountains"
ridge
"Forest"
sylvan grove
"Plains"
sinkhole
"Swamp"
marsh gasâ€
"Desert"
trees
"Coast"
mangrove swamp - "Hills"
limestone pavement
"Mountains"
volcanic cone
"Forest"
clearing (natural)
"Plains"
heavy shrubs
"Swamp"
volcanic vent
"Desert"
gulch
"Coast"
coastal dunes - "Hills"
cave, limestone
"Mountains"
ravine
"Forest"
cave, talus
"Plains"
rock shelter
"Swamp"
shallow water
"Desert"
valley
"Coast"
sand beach