Related by context. Frequent words. (Click for all words.) 44 lava tubes 44 middens 40 ancient tombs 39 termite infestation 39 bird nests 39 hearths 38 Radiocarbon dating 38 rocky outcrops 37 cowsheds 37 hydrothermal vent 37 stromatolites 36 timber framed 36 habitable 36 Arborists 36 Natural Heritage SNH 36 rock outcrops 35 burial mounds 35 animal droppings 35 rotting wood 35 Domesday Book 35 botanists 35 archaeological finds 34 arborists 34 archaeologically 34 moles 34 archaeologists 34 habitable planets 34 househunters 34 palisade 34 dinosaur fossils 34 freshly dug 34 rock outcrop 34 horticulturists 34 limestone caves 34 archeologists 34 landforms 34 diggers 34 archeological 33 workmen 33 ancient relics 33 horticulturalists 33 excavate 33 graves 33 bathrooms kitchens 33 Harappan 33 Earthship 33 Meridiani 33 buried treasure 33 volcanically active 33 ant colonies 33 archaeological 33 brickwork 32 olive grove 32 surveyors 32 hemlock woolly adelgid 32 Lake Vostok 32 twitchers 32 Mesolithic 32 Structural engineers 32 megalithic 32 microfossils 32 subsidence 32 fossils 32 buffelgrass 31 rocky planets 31 roofing contractors 31 graveyards 31 human habitation 31 bushfire prone 31 structurally unsafe 31 unearthing 31 adobe walls 31 gardeners 31 birdwatchers 31 astronomical observatory 31 Martian rocks 31 excavations 31 archeological digs 31 archaeological digs 31 crawlspaces 31 foraminifera 30 flytrap 30 alga 30 occupants 30 extrasolar planets 30 brown marmorated stink bug 30 curtilage 30 soils 30 opals 30 Cabeus crater 30 hidden treasures 30 poorly insulated 30 masons 30 digging tunnels 30 vegetated 30 nonliving 30 stone masons 30 fly tippers 30 ancient artefacts 30 ramblers 30 excavation