Thomsons Lake
... that the lake sediments at Thomsons Lake are 30–40,000 years old, the oldest found in Western Australia?
... that the lake <a href="./Sediment" id="mwEEI" rel="mw:WikiLink" title="Sediment">sediments</a> at <b id="mwEEM"><a href="./Thomsons_Lake" id="mwEEQ" rel="mw:WikiLink" title="Thomsons Lake">Thomsons Lake</a></b> are 30–40,000 years old, the oldest found in <a href="./Western_Australia" id="mwEEU" rel="mw:WikiLink" title="Western Australia">Western Australia</a>?