Related by context. Frequent words. (Click for all words.) 58 expedition 53 Arctic explorer 52 Antarctic expedition 52 Arctic Circle 52 North Pole 52 IPY 52 kilometer trek 51 polar explorer 51 expeditions 50 dogsled 50 Ellesmere Island 50 Antarctica 49 Baffin Island 49 Earthwatch Institute 49 Greenland 49 Arctic archipelago 48 Weddell Sea 47 Antartica 47 Spitsbergen 46 icecap 46 glacier 46 Resolute Bay 46 treks 45 trek 45 tundra 45 Arctic Ocean 45 circumpolar 45 Igloolik 44 Antarctic 44 Earthwatch 44 Lomonosov Ridge 44 mountain ranges 44 circumnavigation 44 sled dog 44 Primal Quest 44 polar regions 43 Shishmaref 43 arctic 43 Nome Alaska 43 Himalayas 43 Roald Amundsen 43 mile trek 43 Antarctic peninsula 43 Iditarod sled dog 43 dog sled 43 Arctic 43 Mount Kilimanjaro 43 Inuit hunters 43 Expedition 42 polar 42 northernmost tip 42 glaciers 42 Ernest Shackleton 42 Royal Geographical Society 42 floe 42 Antarctic Peninsula 42 Northwest Passage 42 highlands 42 permafrost 42 Inuit 42 icebound 42 adventurer 42 Seward Peninsula 42 voyage 41 polar ice 41 Heyerdahl 41 Longyearbyen 41 ice floe 41 Arviat 41 boreal forests 41 Alaskan wilderness 41 glaciologist 41 ultra marathons 41 Pond Inlet 41 explorers 40 northernmost 40 wilds 40 woolly mammoths 40 arduous trek 40 Dian Fossey 40 Banff Alta 40 glacial ice 40 boreal 40 journey 40 glacial melt 40 excursion 40 astronomical observatory 40 bioprospecting 40 Bear Rainforest 40 snowy peaks 40 polar bears 39 Svalbard 39 landforms 39 backpacking trip 39 shrinking glaciers 39 Northeast Passage 39 tropical rainforest 39 boreal forest 39 woodland caribou 39 Pangnirtung 39 Northwest Territories