May 2012 – Tracy Audisio “Evolution Underground: Cave Arthropods of CA…”

Tracy Audisio presents “Evolution underground: Cave arthropods of California and the Pacific Northwest”. Her talk will provide an introduction to the evolution of cave obligate animals and an overview of arthropods frequently encountered in caves. The talk will conclude with current cave spider research and exciting new discoveries in California and the Pacific Northwest.

Tracy is a graduate student studying cave spiders in a joint program between the California Academy of Sciences and San Francisco State University. Tracy began caving with the Stanislaus Speleological Society in 2004, and is affiliated with the Cave Research Foundation and serves on the Advisory Board for the Western Cave Conservancy.

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February 2012 Members Meeting Presentation – “TAG 2011” by Gilly Elor

Gilly Elor gives a presentation on her 2011 trip experience to TAG (Tennessee, Alabama, Georgia area) and her report on the TAG Fall Cave-In. Featured in this presentation is her account on descending Fantastic Pit (600′ drop) in Ellison’s Cave. Other notable caves include Howards Waterfall, Stephen’s Gap, and a few other wet multi-drop caves.

Gilly is a current Diablo Grotto Newsletter Editor and has been caving since July 2010.  She is interested in getting more involved in both international and domestic exploration

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August 2013 Members Meeting Presentation – “Creek And Watershed Mapping Project” by Janet Sowers

The presentation will be about the creek & watershed mapping project I (Janet Sowers) have been involved in since 1993. We now have 15 maps published by the Oakland Museum. Peri and Bill Frantz helped with one of them. We have now stitched the maps together, upgraded them, and put them into Google Earth, which makes it fun to zoom around your watershed. You can see the present day drainage network with its creeks, engineered channels, and underground storm drains, or you can switch to the historical dataset and see the creeks as they were in the 1800s. The Santa Clara Valley map is called WOW (Watching Our Watersheds) and can be downloaded from the Santa Clara Valley Water District website at It has been a fun project and I am excited to share it with the caving community.