Related by context. All words. (Click for frequent words.) 61 Northwest Passage 60 Arctic Archipelago 60 Svalbard Islands 56 Svalbard archipelago 55 fabled Northwest Passage 54 Novaya Zemlya 54 polar explorer Roald Amundsen 53 Foxe Basin 53 Spitsbergen 52 Arctic Ocean 52 Arctic 52 Svalbard islands 52 seaways 52 Lomonosov ridge 51 Nunavut Territory coal 51 Weddell Sea 51 Aleutian chain 51 sealanes 51 Gakkel Ridge 51 Svalbard 51 underwater Lomonosov Ridge 51 Norwegian polar explorer 50 Nares Strait 50 Ellesmere Island 50 Arctic Circle 50 Spitzbergen 50 Ny Alesund 50 Frobisher Bay 50 Sable Island 50 Bouvet Island 50 Bering Straight 50 Cape Adare 50 Qaanaaq 50 Spitsbergen archipelago 49 Beaufort Sea 49 Franz Josef Land 49 Vesterålen 49 Larsemann Hills 49 Sable Gully 49 Vatnajökull 49 Kangerlussuaq 49 fiord 49 icefields 49 Sisimiut 49 Alaskan panhandle 49 dogsled expedition 49 Dumont d'Urville station 49 Inside Passage 49 icebound 48 Aleutian Chain 48 Tracy Arm fjord 48 Drake Passage 48 Disko Island 48 Opposes drilling 48 Polarstern 48 subarctic regions 48 Clipper Adventurer 48 Siberia Lake Baikal 48 icefield 48 volcanic archipelago 48 Bylot Island 48 Igarka 48 subarctic 48 seabed 48 Baffin Island Nunavut 47 Antarctic continent 47 Peril Strait 47 strait 47 Doomsday Seed Vault 47 Disko Bay 47 Svalbard Archipelago 47 Greenland Iceland 47 sea lochs 47 Iturup 47 RV Polarstern 47 Columbia Icefield 47 Porcupine caribou 47 Tatar Strait 47 coral atoll 47 sub glacial lakes 47 nesting seabirds 47 Åland Islands 47 Joggins Fossil Cliffs 47 Resolute Bay 47 Angilak Project 47 Arctic Barents Sea 47 Beluga sapphire property 47 Baffin Island 47 Great Slave Lake 47 frozen Bering Strait 47 French Frigate Shoals 47 Axel Heiberg 47 Barentsburg 47 Laptev Sea 46 Diavik diamond mine 46 Scandinavian fjords 46 penguin rookery 46 Provideniya 46 migratory corridors 46 Sermilik Fjord 46 Greenland semiautonomous Danish 46 seismic faultlines 46 Clipperton Island 46 Alaska Aleutian Islands 46 deepwater corals 46 Vesteraalen islands 46 ocean basins 46 Sami reindeer herders 46 Kugluktuk Nunavut 46 Fareastern Shipping Co. 46 Bering Strait 46 Skokholm 46 Bellingshausen Sea 46 drifting ice floe 46 Kunlun Mountains 46 Arctic seabed 46 Aleutian Islands 46 Habomai islet group 46 circumpolar 46 Changcheng Station 46 archipelago 46 Machias Seal Island 46 Hardangervidda 46 Skagerrak 46 seaway 46 Pamir Mountains 46 Sognefjord 46 Arctic icecap 46 Artic Ocean 46 Point Pelee 46 Unimak Pass 46 ice calved 46 Whillans Ice Stream 46 Aleutian island 46 St Lawrence Seaway 46 Cabot Trail 46 polynya 46 icebergs drifting 46 Peary caribou 46 rocky islet 45 Tuamotu Archipelago 45 Pacific flyway 45 Lofoten Islands 45 Kure Atoll 45 Akademik Ioffe 45 cod fisheries 45 shipping lanes 45 Cape Alava 45 Senkaku islands 45 navigable rivers 45 Inuit 45 Charcot Island 45 Iceberg Alley 45 continental shelf extends 45 Fram Strait 45 Bab al Mandab 45 Cruise Ship Runs Aground 45 Lubec Maine 45 Chichagof Island 45 Chilean Fjords 45 Fin Whale 45 penguin rookeries 45 Longyearbyen Norway 45 Yenisei river 45 Antarctica 45 Chagos Archipelago 45 Stockholm archipelago 45 Jacob Verhoef 45 Amery Ice Shelf 45 Polar Regions 45 floe 45 Hallendy 45 vast Indonesian archipelago 45 icecap 45 bowhead whales 45 Antarctic Peninsula 45 Inner Hebrides 45 Ogasawara Islands 45 Teshekpuk Lake 45 Northumberland Strait 45 Aleksey Maryshev 45 Laysan Island 45 seabird breeding 45 Jan Mayen 45 Hardanger Fjord 45 Leh Manali road 45 Seamounts 45 landlocked Caspian Sea 45 Bering Sea 45 Chukchi Cap 45 explorer Roald Amundsen 45 Big Diomede 45 Chukotka Peninsula 45 Athabascans 45 Antarctic 45 Aksai Chin plateau 45 subsistence whaling 45 antarctic 45 admiral asks 45 Axel Heiberg Island 45 Stikine River 45 walrus polar bears 45 migratory waterbirds 45 Cobourg Peninsula 45 Siberian continental shelf 45 fiords 45 Tadoussac 45 seabeds 45 aboriginal subsistence 45 polar icecap 45 Porcupine caribou herd 45 Laramidia 45 Tiaoyutai Islands 44 Wakhan corridor 44 Arctic Sea 44 Scotian Shelf 44 Chagos archipelago 44 disputed Falkland Islands 44 Oslo Norway AENA 44 Nanisivik 44 Operation Nanook 44 Stellwagen Bank 44 Grise Fiord 44 Dungeness Spit 44 Muskeget 44 coldest driest 44 spokeswoman Sophie Hazelhurst 44 Solovetsky Islands 44 penguin colonies 44 Chilean fjords 44 Helheim Glacier 44 Deadhorse Alaska 44 Cayman Trough 44 Greenland semiautonomous territory 44 strait separating 44 Norway Svalbard 44 fjord 44 harp seal population 44 Greenland icecap 44 Selkirk Mountains 44 Cape Royds 44 Borge Ousland 44 Siberian taiga 44 continental shelf 44 Barents sea 44 Darwin Mounds 44 coral fringed 44 ship Akademik Fyodorov 44 Inuit hunter 44 abyssal plain 44 Nihoa Island 44 Prawle Point 44 Norway Svalbard archipelago 44 Westfjords 44 Oregon Wallowa Mountains 44 SpaceX splashed 44 tidewater glaciers 44 North Pacific Gyre 44 Hatton Rockall basin 44 Antarctic peninsula 44 unpatrolled waters 44 Waters Pollution Prevention 44 Greenland 44 Kitikmeot region 44 nautical miles #km [002] 44 Akwesasne Mohawk reserve 44 frozen wasteland 44 subpolar 44 Chilcotin Plateau 44 Gwaii Haanas 44 Nunivak Island 44 Arctic Coring Expedition 44 haulout 44 Berners Bay 44 tundra 44 Bering Glacier 44 Skan Bay 44 Petermann Glacier 44 Hatton Rockall 44 glacier 44 Little Diomede 44 Okhotsk Sea 44 Inuit peoples 44 towering icebergs 44 Orkneys 44 unspoiled wilderness 44 woodland caribou 44 aboriginal peoples 44 Wadden Sea 44 uninhabited islet 44 Exclusive Economic Zones 44 Unimak Island 44 Jutland peninsula 44 unpopulated terrain 44 Hawaiian archipelago 44 Arctic permafrost 44 Crozet Islands 44 Dardanelles Straits 44 Tracy Arm Fjord 44 Palmyra Atoll 44 Great Bear Rainforest 44 Bab el Mandab 44 Coast Guard icebreaker Amundsen 44 muskox 43 northwesternmost 43 shallow continental shelf 43 subsistence hunts 43 multispectral imaging satellite 43 Johnstone Strait 43 rugged coastline 43 Nordic Barents 43 Etorofu 43 majestic fjords 43 Somalian coast 43 Alexey Maryshev 43 territorial waters 43 Gaspé Peninsula 43 Dardanelles Strait 43 permafrost 43 Antarctic seas 43 Captain Khlebnikov icebreaker 43 Canso Causeway 43 MONTROSE Holistic Health 43 northwestern Hawaiian Islands 43 northernmost tip 43 caribou herd 43 Caspian Sea 43 subantarctic 43 whales seabirds 43 Behm Canal 43 Dongsha Islands 43 Arctic Caribou Herd 43 Qinghai Tibet Plateau 43 Kolyma River 43 research vessel Polarstern 43 islands 43 Crimean peninsula 43 Trudy Wohlleben 43 humpback minke 43 Queen Maud 43 Admiralty Island 43 Attu Island 43 Lake Nipigon 43 Lofoten islands 43 Woodland caribou 43 tropic regions 43 Ny Ålesund 43 disputed Kuril Islands 43 ancient Inca ruins 43 Admiralty Inlet 43 resist tidal surges 43 Bottom trawlers 43 boreal regions 43 Brazil juts farthest 43 Wakhan Corridor 43 Kitikmeot Region 43 dodging icebergs 43 Lake Vostok 43 Southern Kuriles 43 Perito Moreno 43 Jakobshavn Glacier 43 Tatoosh Island 43 Makivik Corp. 43 UPINOR uranium property 43 northern Ryukyu Islands 43 West Quoddy Head 43 Desolation Sound 43 reindeer herding 43 Tuktoyaktuk 43 largely unpatrolled coastline 43 Beardmore Glacier 43 Kola Peninsula 43 Inupiat village 43 explorer Jacques Cartier 43 boreal 43 Monomoy Island 43 Anticosti 43 semiautonomous Danish 43 Resolute Nunavut 43 Aletsch 43 Magdalen Islands 43 pacific coast 43 Kasatochi 43 Norwegian explorer Fridtjof 43 staffed lighthouses 43 coniferous forests 43 CCGS Amundsen 43 Seed Vault 43 methane seeps 43 Monster Shellfish Caught 43 fragile marine ecosystems 43 glacial fjord 43 Syrtis Major 43 Kangiqsualujjuaq 43 Wrangel Island 43 boreal forest 43 coastal temperate rainforest 43 Pacific walruses 43 Inupiat Eskimos 43 Incan citadel 43 Kaminski Morrow 43 McMurdo Sound 43 Prydz Bay 43 seals walrus 43 UNESCO Biosphere Reserve 43 Alaska Aleutian 43 vulnerable marine ecosystems 43 NWHI 43 Qinghai Tibet plateau 43 uninhabited islets 43 Calcasieu Ship Channel 43 scientist Mikhail Lomonosov 43 seabird colonies 43 temperate rainforests 43 thawing tundra 42 Kunashir Island 42 Vesteraalen 42 Coppermine River 42 Ca Mau Cape 42 Latady Island 42 Khumbu glacier 42 Melting Arctic 42 Inside Passage cruise 42 tidal shoreline 42 Norwegian fjords 42 Jakobshavn Isbrae 42 Arvand Rud 42 subglacial lake 42 Nathula Pass 42 Pechora Sea 42 eroding shorelines 42 Aegean islet 42 Arvand river 42 Lomonosov Ridge 42 Punta Tombo 42 landlocked Caspian 42 Okmok Caldera 42 adjacent islets 42 iceberg calving 42 meridional overturning circulation 42 Bering Straits 42 Kunashiri Etorofu Shikotan 42 seabird nesting 42 Chukotka peninsula 42 Antarctica EPICA 42 AP Interview CG 42 lobster fishery 42 Dronning Maud Land 42 equatorial waters 42 Harding Icefield 42 southern supercontinent 42 Antarctic Territory 42 Ousland 42 Revillagigedo Island 42 Scilly Islands 42 North Pole 42 Aleutians 42 alpine terrain 42 Yurungkax River 42 seafloor sediments 42 Machu Picchu citadel 42 Barents Sea 42 Transantarctic Mountains 42 polar 42 Ammassalik Island 42 Perevoznaya Bay 42 Bathurst Inlet 42 Kerguelen Plateau 42 colored gemstone prospects 42 glaciers retreated 42 Arctic Shelf 42 Nathu La Pass 42 Doumeira 42 vessel L' Astrolabe 42 Antarctic glacier 42 Icy Strait Point 42 subglacial lakes 42 midocean 42 treacherous Bering Sea 42 southestern 42 Izembek 42 Kanaga Volcano 42 Barbers Point Harbor 42 Alsek 42 Socotra 42 Lakshadweep Islands 42 Eyjafjoell volcano 42 warship Vasa 42 Mars Analog Svalbard 42 geologically unstable volcanic 42 Roskilde fjord 42 Nikumaroro Island 42 Diaoyutais 42 Jakobshavn 42 Nansha Islands 42 Nenets autonomous region 42 temperate rainforest 42 Larsen Ice Shelf 42 Spurn Point 42 bedrock outcrops 42 Sermeq Kujalleq glacier 42 Varandei 42 fisheries bycatch 42 mountainous Altai 42 Lake Untersee 42 Westman Islands 42 Azores islands 42 Arctic Svalbard 42 Davidson Seamount 42 Cotentin 42 Geiranger 42 Kuril chain 42 coastland 42 McMurdo Dry Valleys 42 Wrangell Narrows 42 Knud Rasmussen 42 Christian Marcussen 42 overland routes 42 midwater trawling 42 Galapagos volcano erupts 42 Rosie Stancer 42 Makah Reservation 42 Paliki 42 icebergs calving 42 seacoasts 42 Unalaska Island 42 Marquesas islands 42 polar regions 42 La Parguera 42 Atlantic flyway 42 Tongass Narrows 42 inland waters 42 meter Giant Oarfish 42 rocky islets 42 Adélie penguins 42 Russ Hopcroft 42 Meagan McGrath 42 Blainville beaked whales 42 Somass River 42 threatened woodland caribou 42 easternmost tip 42 Kii Peninsula 42 Lake Iliamna 42 Matanuska Glacier 42 black browed albatross 42 Kapitan Khlebnikov 42 Pen Hadow 42 Chuckchi 42 Baie Verte peninsula 42 Baltic Sea 42 Barents Region 42 sparsely inhabited 42 Russia Kamchatka peninsula 42 Basking shark 42 Qiongzhou Straits 42 Inuit hunters 42 Pribilof Islands 42 Pond Inlet Nunavut 42 receding glacier 42 Ecuador Galapagos Islands 42 Paracel islands 42 Suriname Guyana 42 Lake Umbagog 42 Haida Gwaii 42 Inc. MSVLP 42 St Pierre Miquelon 42 Kola peninsula 42 polar oceans 42 icebreaking fleet 42 Kattegat 42 transpolar 42 Aniva Bay 42 Gaillard Cut 41 Chignik Bay 41 Lancang River 41 taiga forest 41 Qinling Mountains 41 Svalbard Global 41 Saqqaq 41 zone EEZ 41 Nunavut Territory 41 Quetico Provincial Park 41 virtually unpoliced 41 temperate latitudes 41 Agulhas Current 41 Cebu Bohol 41 HMCS Whitehorse 41 Somali coastline 41 Kirkenes 41 biodiversity hotspot 41 pelagic fishery 41 Lofoten 41 arctic terns 41 Sei whales 41 Nautile 41 Prudhoe Bay Alaska 41 Shikotan 41 Norway Fridtjof Nansen 41 Hurtigruten cruise 41 doomsday vault 41 Gatun Lake 41 Greenlandic 41 Alboran 41 Spitsbergen Norway 41 Alaska Adak 41 Gogama Ontario 41 rugged mountainous region 41 southernmost continent 41 Etorofu islands 41 Vastitas Borealis 41 Chirikof Island 41 Ny Aalesund 41 Vostok Station 41 Fishing trawlers 41 riverways 41 Paracels 41 tanner crab fishery 41 Ronne Ice Shelf 41 Nootka Sound 41 Himalaya Karakoram 41 Teshekpuk 41 Piran Bay 41 pathless 41 humpback whales migrate 41 Bab al Mandab strait 41 Nahanni River 41 oceangoing freighters 41 narwhal 41 seamounts 41 Mona Passage 41 Domain Awareness 41 Whale Sanctuary 41 Oslo Fjord 41 Seychelles archipelago 41 Siberian Yupik 41 Haro Strait 41 Polar Continental Shelf 41 ENVISAT 41 Dudinka 41 Queen Charlottes 41 Grande Comore Anjouan 41 Disenchantment Bay 41 Flowline pipe laid 41 taiga forests 41 Okinotorishima 41 SecureWest International 41 icebreaker Healy 41 Aland Islands 41 megaflood 41 Surtsey 41 icebreaker fleet 41 sandy spit 41 busiest seaways 41 Moapa dace 41 endangered marine mammal 41 archipelagos 41 autonomous Xinjiang Uyghur 41 Chuitna River 41 Aleuts 41 Hoback Basin 41 Brunt Ice Shelf 41 seafloors 41 Baku Supsa oil 41 Bothnia 41 Himalayan river basins 41 migratory bird habitat 41 Quoddy Head 41 Scotland Outer Hebrides 41 Gwich'in Athabascan 41 Alaskan glacier 41 Northwest Territories 41 Gangetic delta 41 Aldabra Atoll 41 roseate tern 41 Mount Bosavi 41 Vatnajökull glacier 41 Ellef Ringnes Island 41 Belhassen Trabelsi reportedly 41 River Tagus 41 Falkland islands 41 Golfo Dulce 41 shell midden 41 Yunnan Guizhou Plateau 41 rocky crevices 41 oceanic islands 41 Perevoznaya 41 Diaoyutai islands 41 Saharan Desert 41 glacier carved 41 continental landmass 41 Tasiilaq 41 remote Svalbard archipelago 41 floes 41 Landlocked Armenia 41 uncharted wilderness 41 Cape Enrage 41 mightiest rivers 41 Beluga sturgeon 41 Whitney Lackenbauer 41 Adak Alaska 41 Khunjerab Pass 41 Puijila 41 virgin rainforests 41 deep convective clouds 41 Lake Baikal 41 solar eclipse visible 41 Athabaskan 41 Jarbidge River 41 Ust Kamchatsk 41 Boreal forests 41 polar plateau 41 Coast Guard icebreaker 41 Sella Pass 41 Galapagos Archipelago 41 cod fishery 41 Cabot Strait 41 Drakes Estero 41 Quatsino Sound 41 balsa raft 41 Lake Lacawac 41 boat San Nikuna 41 summering grounds 41 tidewater glacier 41 Shikotan Island 41 Ussuri River 41 Los Roques islands 41 tidal inlets 41 Marquesas Islands 41 Chersky 41 Juneau Sitka Ketchikan 41 Tristan da Cunha 41 Ungava Bay 41 kilometer buffer zone 41 Bottom trawling 41 recreational cod fishery 41 Longmen Shan fault 41 Pond Inlet 41 Chukchi Sea 41 Siberian tundra 41 Ridout Deformation Zone 41 glaciated terrain 41 Fortymile 41 Longyearbyen 41 tidal inlet 41 Kamchatka peninsula 41 springtime ozone 41 Pamirs 41 undeveloped shoreline 41 Denisova cave 41 Operation Nunalivut 41 coastal lowlands 41 Nunavut hamlet 41 muskeg 41 littoral waters 41 Dimitri Kieffer 41 Bronze Age civilization 41 Lowari Top 41 Eurasian continent 41 Nyamulagira 41 earths surface 41 undersea volcanoes 41 Aatami 41 Arctic continental shelf 41 Walruses dive 41 Yamal peninsula 41 Saimaa 41 limestone caverns 41 Vastitas Borealis akin 41 Faroe Islands Greenland 41 Himalayan region 41 seafloor habitats 41 Bering Chukchi 41 Mealy Mountains 41 unvisited 41 Zanskar valley 41 famed Matterhorn 41 Iqualuit 41 penguin breeding 41 Somali territorial waters 41 mainlands 41 mountainous Shabwa province 41 Teratai Prima sank 41 Galapagos islands 41 Dom Mee 41 Gota Canal 41 Alaska Inside Passage 41 glaciers icebergs 41 Alaska Aleutian chain 41 Amur river 41 Yukon Territories 41 secluded bays 41 Sunda megathrust 41 breeding seabirds 41 Vasa Museum 41 Superior Craton 40 Wrangell Mountains 40 disputed isles 40 Jedidiah Island 40 Peller Estates Icewine 40 granite bedrock 40 Ilulissat 40 Woolly mammoths 40 undersea Lomonosov Ridge 40 Hebridean islands 40 Pangnirtung Nunavut 40 hyena dung 40 Hercules Inlet 40 Westerschelde 40 Tlingit tribes 40 Paracel archipelagos 40 Russia Kamchatka Peninsula 40 stone cairns 40 HMCS Corner Brook 40 Saanich Inlet 40 Kon Tiki expedition 40 bowhead 40 landlocked Bolivia 40 island 40 Kasatochi volcano 40 Jurassic Coast 40 tiny meteoroid 40 Nordkapp 40 Copter crashes 40 station Zarya module 40 waterway 40 Operation NANOOK 40 equatorial rainforest 40 Isla Calero 40 Inuvialuit Settlement Region 40 roadless wilderness 40 Wrangell St 40 razor clam harvesting 40 prawn fishery 40 Gangotri glacier 40 Des Groseilliers 40 southern latitudes 40 hidden crevasses 40 sedimentary layer 40 Kuril islands 40 arctic tundra 40 ungoverned tribal regions 40 barnacle geese 40 Magee Marsh 40 permafrost melts 40 sea lion rookeries 40 Galapagos archipelago 40 seals sea lions 40 Western Sedimentary Basin 40 Aldabra atoll 40 Aleutian Basin 40 uninhabited island 40 La Blanquilla 40 Burgess Shale 40 Shackleton expedition 40 reindeer herder 40 oceangoing vessel 40 lowland plains 40 Genghis Khan conquered 40 Athabasca Glacier 40 icebreaking ships 40 Pamir mountains 40 Kurile 40 Siberian Traps 40 Kihansi spray toad 40 British dreadnought Hood 40 Cephallonia 40 humpbacks migrate 40 Vitus Bering 40 Cape Poge 40 Permafrost 40 glacially carved 40 Polynesian voyagers 40 densely forested mountains 40 bar tailed godwit 40 tribally governed belt 40 glacier calving 40 calving grounds 40 Akutan Island 40 Aklavik 40 fjords 40 Tien Shan Mountains 40 Transneft pipeline 40 tribally ruled 40 Front Cardiac CryoAblation 40 harpooned whales 40 Uelen 40 Cape Lisburne 40 Bear Rainforest 40 isolated Johnston Atoll 40 caribou habitat 40 tidal salt marsh 40 Inflatable rafts 40 Vagar 40 robotic submersibles 40 Milensky 40 disputed Spratlys 40 Mare Australis 40 Diaoyutai Islands 40 Orkney islands 40 migratory routes 40 Martian equator 40 marine biodiversity 40 Dungeness crab fishery 40 Doubtful Sound 40 Rose Atoll 40 Loch Ewe 40 flyways 40 Oceangoing vessels 40 Suomenlinna 40 Ussuri 40 ArcticNet 40 ferry Amorella 40 dense tropical rainforest 40 Arctic terns 40 transient orcas 40 unclimbed peaks 40 Mekoryuk 40 Jakobshavn glacier 40 Atlantic Ocean 40 Lewis Chessmen 40 Gjoa Haven 40 predawn confrontation 40 Qinghai Tibetan plateau 40 Umnak Island 40 roiling shark infested 40 wilderness lodges 40 Jason Willaford 40 Store Norske 40 Baranof Island 40 Stora Sahavaara magnetite 40 Barents Seas 40 Windblown snow 40 Tsugaru Strait 40 Azores archipelago 40 Mertz Glacier Tongue 40 spiny dogfish 40 ungoverned regions 40 Sargasso Sea 40 Laurentide Ice Sheet 40 caribou calving 40 Salish Sea 40 polar vortex 40 Premier Stephen Kakfwi 40 harp seal herd 40 Guglielmo Marconi experiments 40 Taimyr Peninsula 40 Noatak 40 Bosporus Straits 40 Quebec Nunavik 40 Perito Moreno glacier 40 Ross Ice Shelf 40 Kelp forests 40 glacial silt 40 Bosphorus Strait 40 Ayles Ice Shelf 40 Ice Melts 40 Los Roques 40 Bowhead whales 40 poorly demarcated 40 Hoh River 40 volcanic islets 40 Greenland halibut 40 German battleship Bismarck 40 Benny Paulsson 40 Press blb 40 Shiveluch 40 Tsushima Strait 40 Akesuk 40 Laurentide ice sheet 40 receding glaciers 40 Maltese flagged vessel 40 Habomai islets 40 Norwegian Polar 40 Dugua 40 Andaman Sea coastline 40 Bramley Murton 40 LifeGuard Alaska helicopter 40 Zhongshan Station 40 Chagos 40 Dirk Hartog Island 40 Limantour Beach 40 waters teem 40 Altai Mountains 40 refugia 40 medieval backwater 40 vast Gusev Crater 40 desolate tundra 40 Achieve Mapping Catheter 40 Greenland glacier 40 Woodland Caribou 40 Timan Pechora region 40 Quaternary Period 40 picturesque coves 40 Tanana Flats 40 pliosaur ferocious predator 40 Kurile Islands 40 Fangataufa 40 Kenai Fjords National 40 Ice Shelf