Larsen, Martin RGreen, Jeffrey ABarry, John DKasahara, Sophie MWheeler, Betty JAlexander Jr., E Calvin2018-10-242018-10-242018-10https://hdl.handle.net/11299/200690Single trace conducted in order to establish a connection from York Blind Valley to water flowing in the lower levels of Holy Grail Cave.endyetracetracinggroundwatersinkholespringkarstReport