| cryogenic landform(noun, expression, form, geology, feature) |
| cryovolcano(noun, form, geology, feature, land) |
| cuesta(noun, form, geology, feature, land) |
| cuspate foreland(noun, expression, form, geology, feature) |
| cut bank(noun, expression, form, geology, feature) |
| dale(noun, form, geology, feature, land) |
| defile(noun, form, geology, feature, land) |
| dell(noun, form, geology, feature, land) |
| delta(noun, form, geology, feature, land) |
| depression(noun, form, geology, feature, land) |
| desert pavement(noun, expression, form, geology, feature) |
| diatreme(noun, form, geology, feature, land) |
| dike(noun, form, geology, feature, land) |
| dirt cone(noun, expression, form, geology, feature) |
| dissected plateau(noun, expression, form, geology, feature) |
| doab(noun, form, geology, feature, land) |
| doline(noun, form, geology, feature, land) |
| dome(noun, form, geology, feature, land) |
| drainage basin(noun, expression, form, geology, feature) |
| drainage divide(noun, expression, form, geology, feature) |