Related by context. Frequent words. (Click for all words.) 63 lava tubes 61 granite boulders 61 stalactite 61 landform 60 limestone formations 58 rock outcrops 58 cairns 58 sandstone cliffs 58 basalt 57 obelisks 57 granite stones 57 volcanic crater 56 palisade 56 megaliths 56 petroglyph 56 volcanic rock 56 rocky outcrops 56 rock outcrop 55 basaltic 55 landforms 55 stalactites 55 trackway 55 limestone cliffs 55 rock outcroppings 55 lava tube 54 moai 53 concentric rings 53 massif 53 jagged peaks 53 towering cliffs 53 boulders 53 ridges 53 whorls 52 limestone caves 52 deep gorges 52 stromatolites 52 sheer cliffs 52 landmasses 52 rocky cliffs 52 stone slabs 52 rock formations 52 volcanic islands 52 carvings 52 petroglyphs 52 stone arches 52 termite mounds 52 cliffs 52 wooden walkway 52 moraines 52 buttes 51 Teton Range 51 promontory 51 wooden pilings 51 Valles Marineris 51 sandstone 51 caldera 51 wooden boardwalk 51 calcite 51 stalagmites 51 outcroppings 51 grassy slopes 51 waterfalls 51 granite slabs 51 totem poles 51 striations 51 granite peaks 50 graben 50 cascading waterfall 50 beeches 50 pentagonal 50 arches 50 pilasters 50 cliff dwellings 50 sculptures 50 stone carvings 50 semicircular 50 cypress tree 50 Corinthian columns 49 hoodoos 49 extinct volcano 49 leafless trees 49 stupas 49 Moai 49 beech trees 49 dinosaur footprints 49 middens 49 elaborately carved 49 limestone 49 Sitka spruce 49 archipelagos 49 conical 49 geologic formation 49 dunes 49 #ft tall [002] 49 triptychs 49 granite 49 stalagmite 49 mudstone 49 conifer trees 49 intricate carvings 49 crags