# Snail Shell Cave Karst Window

- By: Dave Bunnell
- Date: 2014-07-13
- Classification: Photograph
- Museum: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Snail_Shell_Cave_Karst_Window.jpg)
- Rights: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0)
- Picture: https://invisiblenetwork.ai/thumbs/commons/thumb/8/8f/Snail_Shell_Cave_Karst_Window.jpg/1920px-Snail_Shell_Cave_Karst_Window.jpg
- Who can see it: Kids profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)

This is in the main entrance of Snail Shell Cave in Tennessee. It is a Karst Window entrance, where a collapse has occured into the middle of a cave stream passage. Here you are in one arm of the passage looking into the other arm. The cave extends for long distances each way with flotation required in much of it.