Related by context. Frequent words. (Click for all words.) 66 burial mounds 62 pictographs 58 petroglyph 56 cliff dwellings 55 petroglyphs 54 stone carvings 54 rock outcrops 53 totem poles 53 arrowheads 53 landform 53 pictograph 52 wigwam 52 carvings 52 burial grounds 52 wigwams 51 interpretive panels 51 prehistoric 51 buttes 51 teepees 51 pre Incan 51 sandstone cliffs 51 landforms 51 knolls 50 artifacts 50 obelisks 50 mural depicts 50 archaeological finds 50 agates 50 bas reliefs 50 basketry 49 Harappan 49 hieroglyphs 49 Harappa 49 middens 49 megaliths 49 murals depicting 49 marble sculptures 49 sandstone formations 49 forested wetlands 49 deerskin 49 Native American 49 sculptures 49 woodcarvings 49 geodes 49 floral motifs 49 Cahokia Mounds 49 petrified wood 49 stalactite 49 monuments 49 Native Americans 49 archeological digs 49 totems 48 tule 48 elaborately carved 48 Miwok 48 trackways 48 mussel shells 48 intricate carvings 48 saguaro cactus 48 limestone formations 48 ancient 48 butte 48 polychrome 48 potteries 48 limestone 48 palisade 48 architectural masterpieces 48 vernacular architecture 48 leaded glass windows 47 chert 47 leafless trees 47 hand hewn 47 architectural gems 47 wood carvings 47 tulip poplar 47 woodblocks 47 lilac bushes 47 Palaeolithic 47 Chaco Canyon 47 birch bark 47 Carvings 47 Egyptian pyramids 47 flora fauna 47 beech trees 47 prehistory 47 Gothic architecture 47 stupas 47 tulip tree 47 mounds 47 outcroppings 46 archeological 46 bas relief 46 fieldstone 46 prairie grasses 46 archeologists 46 jasper 46 Tombstones 46 archeological sites 46 tamarack 46 tepees 46 bluebonnet