Tag Archives: Black Sand Basin

Fun Fact Friday 4-24-2020

Black Sand Basin Landscape

“Bobby socks” around Opalescent Pool in Black Sand Basin, Yellowstone National Park

"Bobby Socks" At Fountain Paint Pots Nature Trail

“Bobby socks” along the Fountain Paint Pots Nature Trail, Yellowstone National Park

Hey folks, it’s Fun Fact Friday!

If you’ve ever visited Yellowstone National Park, you’ve seen these dead, desolate trees with the white rings around their bases. Those are called “Bobby socks” and are formed when the trees absorb the silica (natural glass) from the thermal waters. This, of course, kills the trees and “freezes” them to keep them standing.

And now you know!

Copyright Rebecca L. Latson, all rights reserved.

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Opalescent Pool And Black Sand Basin Landscape

Black Sand Basin Landscape

I first visited Black Sand Basin in Yellowstone National Park during the evening on the previous day from this shot. It was overcast and getting dark and I didn’t even notice this little side area next to the entry drive to the parking lot. I didn’t see this until I visited the next morning, a lovely, sunny day. I’ve been reading: TravelBrains’ “Yellowstone Expedition Guide” and learned this interesting fact: the trees you see here are dead, of course. The bottoms of their trunks are white because they absorbed the hot water in the area, which is filled with silica in solution. That silica comes out of solution and is what has colored those trunk bottoms. It’s the first step in petrification of the trees. Oh, and Black Sand Basin gets it’s name from the black obsidian sand grains in the area. Cool, huh?

Copyright Rebecca L. Latson, all rights reserved.

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Filed under 5DSR, autumn, Canon, Canon 16-35mm f/2.8L III, Canon Lens, Geology, National Parks, Photography, Seasons, Travel, Wyoming, Yellowstone National Park