Indian Mound Park
...that the mounds of Indian Mound Park on Dauphin Island, Alabama are composed of oyster shells discarded over centuries by migrant Indians?
...that the mounds of <b id="mwD0Y"><a class="mw-redirect mw-disambig" href="./Indian_Mound_Park" id="mwD0c" rel="mw:WikiLink" title="Indian Mound Park">Indian Mound Park</a></b> on <a href="./Dauphin_Island,_Alabama" id="mwD0g" rel="mw:WikiLink" title="Dauphin Island, Alabama">Dauphin Island</a>, <a href="./Alabama" id="mwD0k" rel="mw:WikiLink" title="Alabama">Alabama</a> are composed of <a href="./Oyster" id="mwD0o" rel="mw:WikiLink" title="Oyster">oyster</a> shells discarded over centuries by migrant Indians?