Northeast Syrtis
... that the Northeast Syrtis region on Mars once had flowing water, and has sulfate and carbonate minerals?
... that the <b id="mwBj8"><a href="./Northeast_Syrtis" id="mwBkA" rel="mw:WikiLink" title="Northeast Syrtis">Northeast Syrtis</a></b> region on <a href="./Mars" id="mwBkE" rel="mw:WikiLink" title="Mars">Mars</a> once had flowing water, and has sulfate and carbonate minerals?