boulder Synonyms

bowlder stones gibber stone boulderstone standing stone bedrock syenite stonework stone slice shingle sarsen rubble Rockingham rocks pebbles larger rock large marble involvement in bouldering gray rock granitelike rock flint stones engage in bouldering detached mass of rock city northwest of denver ballast rock large mass of stone stone monument rockery rock gravel grain gibber gem escarpment dolmen crystal cromlech crag column cobblestone cobble hunk jewel rhyolite quartzite pebble obelisk monument monolith