Number | Name | Date | Kind |
---|---|---|---|
223904 | Gleason | Jan 1880 | |
986483 | Messlin | Mar 1911 | |
2466240 | Joa | Apr 1949 | |
2937748 | Stevens | May 1960 | |
5381861 | Crafton et al. | Jan 1995 |
Entry |
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"On Rope", Allen Padgett and Bruce Smith, p. 187, published by National Speleological Society. |