Skip to Content


Wind Holes

A cache by Me & Bucky Send Message to Owner Message this owner
Hidden : 01/15/2008
3 out of 5
1.5 out of 5

Size: Size: not chosen (not chosen)

Join now to view geocache location details. It's free!


How Geocaching Works

Please note Use of services is subject to the terms and conditions in our disclaimer.

Geocache Description:

This Earthcache is located at a small road cut about 15’ tall on the south side of the I-80 frontage road. Access is either by taking exit 122 and heading east on the frontage road, or taking exit 130 and heading west. Please DO NOT park on the interstate to complete this Earthcache.

The rock at this road cut has begun forming cavities or hollows called tafoni. This process is also often called honeycomb weathering or cavernous weathering, and the structures called “wind holes”. Though not well understood, this is thought to occur mainly through a form of wind and water erosion.

In one hypothesis of how tafoni are created, moisture through the form of dew or precipitation enters these rocks and dissolves some of the harder minerals. These are leached to the surface, where the water evaporates leaving a coating or crust on the parent material. Some time later a piece of this outer crust breaks or weathers off and wind erosion begins to eat away at the softer material below. The rock eventually weathers to the form which you see here.

The rock through which the road passes is formed mainly from sandstone, with a little mudstone and shale mixed in. Tafoni is usually found to be associated with sedimentary rocks, such as sandstones.

To log this Earthcache, send me an email with the answers to the following questions:

1.) Which half of the road cut (east or west) contains the most tafoni?

2.) Relatively speaking, are most of the tafoni the same size, or is there a large size differential? Explain your answer.

Several areas with tafoni are located off of this frontage road and you are most welcome to take and post pictures of these. However, please do not post a picture of the road cut at this location which might give away answers to the requested questions.

The above information was compiled from the following sources:

Lageson, D.R., and Spearing, D.R. 2004. Roadside Geology of Wyoming, 2nd Edition.

Tafoni: (visit link)

Additional Hints (No hints available.)



249 Logged Visits

Found it 246     Write note 2     Publish Listing 1     

View Logbook | View the Image Gallery of 64 images

**Warning! Spoilers may be included in the descriptions or links.

Current Time:
Last Updated:
Rendered From:Unknown
Coordinates are in the WGS84 datum

Return to the Top of the Page

Reviewer notes

Use this space to describe your geocache location, container, and how it's hidden to your reviewer. If you've made changes, tell the reviewer what changes you made. The more they know, the easier it is for them to publish your geocache. This note will not be visible to the public when your geocache is published.