[Texascavers] Devils Sinkhole -- Calling all Old Timers!

[Allan Cobb via Texascavers]

I am doing a talk at the TSA Spring Convention about Devils Sinkhole. I 
would like to hear from cavers who were there in the 50s, 60s, and 70s. 
Bonus points if I can get photos to use in my talk.

Please contact me off-list at a...@oztotl.com.
Allan
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