For presentation-related inquiries, please contact Carl Haken
The 2025 flash presentation theme is Survey and Cartography
Date | 2025 Story: Cartography | Main Presentation | Presenter |
---|---|---|---|
Oct 7 | Visual Representations of Cave Morphology: Will Heltsley | Mapping Plunge Pool | Carl Haken |
Nov 4 | Evolution of Cartography: Carol Vesely | The Unusual Caves of Brazil | Carol Vesely and Nancy Pistole |
Dec 2 | Using TopoDroid: Carl Haken | Gating the Underworld | Alan Rice, James Rice, David Angel |

October 7
Mapping Plunge Pool
Grotto Chairman Carl Haken recounts the trials and tribulations of mapping Plunge Pool cave in the Anza Borrego desert.
Photo: Carl Haken
November 4
The Unusual Caves of Brazil
World-traveling cave surveyors Carol Vesely and Nancy Pistole describe their recent experiences attending the 2025 International Congress of Speleology in Brazil, and going to some sweet caves!
Photo: Nancy Pistole


December 2
Gating the Underworld
Professional bat gating contractors Alan Rice, James Rice, and David Angel describe the process of cave and mine gating. Why and how the underground spaces become gated as well as the various techniques used.
Photo: David Angel