Day 80 - Landforms
Mountain (mountain)
river (river)
valley (valley)
hill (hill)
lake (lake)
Ocean (ocean)
sea (sea)
Desert (desert)
plateau (plateau)
cliff (cliff)
Canyon (canyon)
dune (dune)
Plain (plain)
summit (peak)
Volcano (volcano)
waterfall (waterfall)
Island (island)
peninsula (peninsula)
bay (bay)
bay (gulf)
fjord (fjord)
glacier (glacier)
archipelago (archipelago)
coral reef (reef)
atoll (atoll)
isthmus (isthmus)
delta (delta)
Basin (basin)
cave (cave)
ravine (gorge)
Day 80: Landforms