DSLR Photography Forum

Can you guess what this is a photo of? The winner will receive the satisfaction of knowing they won.

Looks like the skin on the back of my hand. At this time of the year it could use a little moisturizer.

Regards.....Dennis

Is it mud?

ooh very close

Looks like a beach/river estuary as the tide goes out.

Ice melting on a windscreen?

good guesses but no

Volcanic rock/flow?

on the right track with thinking geothermal

Bacterial Carpet? (Surround geysers)

Yep! Surrounding Grand Prismatic Spring in Yellowstone National Park. The lines are tiny terraces formed by silica deposits.

Should of got it first time.... I have about 150 shots of that stuff from my trip in August.