Spong, Ronald C2017-03-062017-03-061992https://hdl.handle.net/11299/184854Annotated by: Ronald C. Spong 1992. 24k USGS topo map containing dye input points, dye vectors and spring where dye was detected. Positive trace from Sweetwater Well to Spring Valley Cave 3 to Lost River Rise (Bly's Spring).enMap