With nearly 400 units, the National Park System harbors some incredible wonders. Some are easy to recognize, such as Old Faithful, the Everglades, and the Tetons. But every now and again you come across something that you stare at and scratch your head over.

Such as the subject of this week's Mystery Photo. Is it man-made? Is it natural? Is it organic? What was it used for? Is it one of a kind? Is it bigger than a bread box? And in which unit of the National Park System might you find it?

Tell us the answer.

Comments

Terry (not verified)

Is it a volcano bomb or Pele's tear from Volcanoes N.P. in Hawaii?

Bob Janiskee

No fair submitting multiple answers, Terry.

Terry (not verified)

Ok, I'll go with Pele's Tear from Volcanos NP.

greg k (not verified)

dinosaur dung. dinosaur national monument.

Bob Janiskee

Nope and nope -- it's not Pele's tear or dinosaur dung.

galeigh0077

It is dinosaur dung!

Anonymous (not verified)

Dinosaur egg, Dinosaur National Monument

Bob Janiskee

It's not a dinosaur egg.

tahoma

Well, Dr Watson, there are multiple questions...I'll go with natural, looks like a basalt lava bomb with a
fracture pattern from cooling, and probably geologically young. The narrow depth of field suggests it's
smaller than a breadbox. The blurred background looks drier than Hawaii or the Cascades. My guess is
Craters of the Moon.

Bob Janiskee

Right on the mark, Tahoma, and I'm impressed. Are you sure you weren't there when this photo was taken?

suki (not verified)

it's definitely a lava bomb. maybe from Sunset Crater National Monument?

Bob Janiskee

Terry: Why did you give up on "volcanic bomb"? I only nixed your second guess (Pele's tear), not the first one. Hope you're not too angry with us. ;o)

Robert Mutch

Geez, I didn't even get a chance. Great (well educated) guess tahoma. Well done. Yes, the background (as low depth-of-field as it is) was not Lassen Volcanic NP.

rob
--
Executive Director,
Crater Lake Institute
www.craterlakeinstitute.com
Robert Mutch Photography

Kurt Repanshek

Obviously we're going to have to dig a little deeper to find images that are more challenging. Come back tomorrow to learn about some of the background of this particular type of bomb.

R Stefancik (not verified)

Thunder egg!

Terry (not verified)

No, not angry at all. I'm afraid I wouldn't have guessed the right park anyway. Congrats to tehoma.

Steven M. Bumgardner

Steven M. Bumgardner
Videographer/Producer

Is that a silver sword in the background? Haleakala?

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