12 replies [Last post]
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Location: Pennsylvania
Joined: 10/28/2003
Posts: 1636
Can anyone tell me what made this?

Where did these holes come from?

Had to remove this pic to ad the ones at the bottom of the thread.

redrider's picture
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Moderator
Location: NE Kansas
Joined: 03/20/2006
Posts: 2589
Can anyone tell me what made this?

Beats me Think Is that rock or dirt? Where are you? Any tracks or anything that shows they are being used presently or are they all vacant?

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Location: WASHINGTON
Joined: 05/18/2006
Posts: 34
Can anyone tell me what made this?

Swallows??

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Location: Pennsylvania
Joined: 10/28/2003
Posts: 1636
Can anyone tell me what made this?

In central Idaho, those are in a huge rock formation. They are all empty and range in size from say 6"(not really sure on the small side) up to about 24" across and deep.
I was thinking that maybe some kind of rock or mineral was inside here many years ago and it is gone now or it was something else but evaporated or something.....maybe aliens! I don't know!

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Location: Idaho
Joined: 06/01/2004
Posts: 1046
Can anyone tell me what made this?

If they are actually `tubes' that go on in significant distances, perhaps getting smaller in diameter - the I would suspect that they are due to what is called `piping' (internal tubes of erosion). If they only go in a ways and then there is a nest of some kind - then some critter or bird made them. So, how far in did they go? I imagine piping during a very wet period.

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Location: Idaho
Joined: 02/28/2006
Posts: 159
Can anyone tell me what made this?

I highly doubt critters made those. The sand is gone, animals only move it around and there are no mounds or trails and besides there are way too many. I would bet my best remmington those are from wind erosion
Hank

expatriate's picture
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Location: Arizona
Joined: 10/26/2002
Posts: 3206
Can anyone tell me what made this?

It's tough to tell from just one photo. But I suspect your first inclination may be right -- inclusions of something softer that weathered away. Given the location, it's hard to say from just one photo whether it's sandstone or volcanic (i.e. ash or pyroclastic). Eastern Washington and Idaho are full of examples of volcanic eruptions on an enormous scale, and the stripe across the middle leads me to think we may be looking at at least three rapid laydowns rather than sedimentary rock in the classic (river/seabed) sense.

redrider's picture
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Moderator
Location: NE Kansas
Joined: 03/20/2006
Posts: 2589
Can anyone tell me what made this?

I came across something like this while walking a creek this weekend. Large limestone ledges along the bank had 8 - 10 inch size holes and the hole were filled with dirt. Probably erosion and depositing when the water is high. So I'll go with water erosion on your holes also.

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Location: Pennsylvania
Joined: 10/28/2003
Posts: 1636
Can anyone tell me what made this?

The consistancy is like sandstone. I have another pick of a place where the water running down the rock created a (verticle) dry river bed from top to bottom in the rock. I'll post it here. The pic is sitting sideways.....sorry.

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Location: Pennsylvania
Joined: 10/28/2003
Posts: 1636
Can anyone tell me what made this?

Heres a different view of it to get a better idea of how big this formation is.

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Location: Crested Butte Co.
Joined: 09/05/2005
Posts: 149
Can anyone tell me what made this?

Think it was a dirtpecker.

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