Espenberg
... that the largest maars on Earth, found at the Alaskan volcanic field of Espenberg, formed when magma explosively interacted with ice in the ground?
... that the largest <a href="./Maar" id="mwBns" rel="mw:WikiLink" title="Maar">maars</a> <i id="mwBnw">(example pictured)</i> on Earth, found at the Alaskan <a href="./Volcanic_field" id="mwBn0" rel="mw:WikiLink" title="Volcanic field">volcanic field</a> of <b id="mwBn4"><a class="mw-disambig" href="./Espenberg" id="mwBn8" rel="mw:WikiLink" title="Espenberg">Espenberg</a></b>, formed when magma explosively interacted with <a href="./Permafrost" id="mwBoA" rel="mw:WikiLink" title="Permafrost">ice in the ground</a>?