Dana Lepofsky
... that according to research led by Dana Lepofsky, some clam gardens on the Pacific Northwest Coast are up to 3,500 years old?
... that according to research led by <b id="mwBAw"><a href="./Dana_Lepofsky" id="mwBA0" rel="mw:WikiLink" title="Dana Lepofsky">Dana Lepofsky</a></b>, some <a href="./Clam_garden" id="mwBA4" rel="mw:WikiLink" title="Clam garden">clam gardens</a> on the Pacific Northwest Coast are up to 3,500 years old?