Photograph as originally submitted to this page in the Historical Marker Database www.HMdb.org. Click on photo to resize in browser. Scroll down to see metadata.
Blowhole Effect Illustration on Marker
Photographer: National Park Service
Taken: undated
Caption: Blowhole Effect Illustration on Marker
Additional Description: [Caption reads] If the outside air pressure is lower than in the crack system, air is blown out.
Submitted: April 15, 2011, by William Fischer, Jr. of Scranton, Pennsylvania.
Database Locator Identification Number: p150294
File Size: 0.073 Megabytes

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