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File:Gypsum Needles off the Muddle Room (1969a71a-3206-4711-b180-73da1fe747fb).jpg

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Summary

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English: Gypsum Needles off the Muddle Room
Photographer
English: NPS Photo
Title
English: Gypsum Needles off the Muddle Room
Description
English:

a cluster of white hair-like crystalline needles on the cave floor

Gypsum needles are one of the most fragile cave formations. These strands of gypsum are often thinner than a human hair and will break if breathed on.

  • Keywords: gypsum; gypsum needles; cave formation; speleothem
Depicted place
English: Wind Cave National Park, Custer County, South Dakota
Date Taken on 21 March 2009
Accession number
1969a71a-3206-4711-b180-73da1fe747fb
Source
English: NPGallery
Permission
(Reusing this file)
Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.
NPS Unit Code
InfoField
WICA

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current14:33, 13 January 2022Thumbnail for version as of 14:33, 13 January 20222,400 × 1,636 (3.99 MB)BMacZeroBot (talk | contribs)Batch upload (Commons:Batch uploading/NPGallery)

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