cross dykes
... that English Heritage considers cross dykes , earthwork barriers built throughout upland Britain, to be Bronze Age territorial boundaries of national importance?
... that <a href="./English_Heritage" id="mwBZo" rel="mw:WikiLink" title="English Heritage">English Heritage</a> considers <b id="mwBZs"><a href="./Cross_dyke" id="mwBZw" rel="mw:WikiLink" title="Cross dyke">cross dykes</a></b> <i id="mwBZ0">(example pictured)</i>, <a class="mw-redirect" href="./Earthwork_(archaeology)" id="mwBZ4" rel="mw:WikiLink" title="Earthwork (archaeology)">earthwork</a> <a href="./Border" id="mwBZ8" rel="mw:WikiLink" title="Border">barriers</a> built throughout upland Britain, to be <a href="./Bronze_Age_Britain" id="mwBaA" rel="mw:WikiLink" title="Bronze Age Britain">Bronze Age</a> territorial boundaries of national importance?