Related by context. Frequent words. (Click for all words.) 67 lowland 66 highlands 60 plains 59 hills 59 mountains 57 foothills 57 uplands 57 river valleys 55 mountainous regions 55 hillsides 55 mountain slopes 55 flatlands 53 rivers 53 mountain ranges 53 savannahs 52 countryside 52 higher elevations 51 fertile soils 51 farmlands 51 valleys 51 steep slopes 51 mountainous 50 headwaters 50 pine forests 50 massif 50 hilly 50 Mountainous 50 inland 50 dense forests 50 forested 49 meadows 49 ridge 49 tropics 49 hardwood forests 49 savanna 49 mountainsides 49 swamps 49 semi arid 49 savannas 48 rolling hills 48 forested hills 48 highland 48 semiarid 48 highlanders 48 temperate zones 48 mountainous terrain 47 grasslands 47 piedmont 47 escarpment 47 hinterlands 47 crags 47 temperate climates 47 treeless 46 slopes 46 elevations 46 Appalachians 46 arid 46 rugged mountains 46 valley 46 hillside 46 soils 46 forests 46 lush forests 46 aridity 46 fens 46 river basin 46 Cascade foothills 45 pine forest 45 Severe drought 45 Mountains 45 hilltops 45 steppes 45 riverbanks 45 Sierra Nevadas 45 southwards 45 pastureland 45 sandy soil 45 peninsular 45 temperate climate 45 latitudes 45 Himalayas 45 tributaries 45 glaciers 44 heavily forested 44 glacial lakes 44 temperate regions 44 mosquito infested 44 pastures 44 rocky slopes 44 cooler climes 44 region 44 Arctic tundra 44 semi nomadic 44 hinterland 44 central highlands 44 marshy 44 wadis 44 river basins 44 northward 44 southward 44 savannah