Goliath's Cave, Minnesota: Epigenic Modification and Extension of Pre-Existing Hypogenic Conduits

E. Alexander, Jr., Scott Alexander, Kelton Barr, Andrew Luhmann, Cale Anger
2015 Sinkholes and the Engineering and Environmental Impacts of Karst: Proceedings of the Fourteenth Multidisciplinary Conference   unpublished
doi:10.5038/9780991000951.1017 fatcat:nvsex4ks7vbkraguhncz6qxf7u