The 2015 annual convention of the National Speleological Society was held in Missouri just 30 miles from Carroll Cave.  Trips to Carroll Cave were a major feature of the event.

The guidebook for the convention had a lengthy article regarding the history and status of Carroll Cave.  The link below goes to a PDF file of the entire article including illustrations and figures.

Carroll Cave_Guidebook Article_Text and Figures_5-11-2015