Ask A Geologist About SinkholesMika McKinnon7/31/14 12:30pmFiled to: geologyFiled to: geologygeologysinkholesEarth And SpaceSaveEditEmbiggenSend to EditorsPromoteShare to KinjaToggle Conversation toolsChange in-article videoGo to permalinkSinkholes are amazing. Ask USGS geologist Daniel Doctor anything you want about them.AdvertisementShare This Story
