File:Honeycomb-weathered sandstones (Casper Formation, Middle Pennsylvanian to Lower Permian; near Ayres Natural Bridge, Wyoming, USA) (49145361562).jpg

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Honeycomb-weathered sandstones in the Upper Paleozoic of Wyoming, USA.

These cliffs form the walls of a narrow gorge cut by LaPrele Creek in eastern Wyoming. Just upstream from here is Ayres Natural Bridge, a rare erosional feature that spans the stream.

The rocks themselves are Upper Paleozoic sandstones of the Casper Formation The colors are from iron oxide (hematite, Fe2O3).

The circular pits on the cliff face are honeycomb weathering, which often forms on sandstone bluffs.

Stratigraphy: Casper Formation (also known as the Tensleep Formation), Middle Pennsylvanian to Lower Permian

Locality: Ayres Natural Bridge over LaPrele Creek, southern end Natural Bridge Road, south of Interstate 25, west of the town of Douglas, Converse County, eastern Wyoming, USA

See info. at:

<a href="https://en.wikipedia.org/wiki/Ayres_Natural_Bridge_Park" rel="noreferrer nofollow">en.wikipedia.org/wiki/Ayres_Natural_Bridge_Park</a>
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Source Honeycomb-weathered sandstones (Casper Formation, Middle Pennsylvanian to Lower Permian; near Ayres Natural Bridge, Wyoming, USA)
Author James St. John

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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/49145361562 (archive). It was reviewed on 2 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

2 December 2019

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Date/TimeThumbnailDimensionsUserComment
current06:25, 2 December 2019Thumbnail for version as of 06:25, 2 December 20193,008 × 2,000 (4.38 MB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

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