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SOME POINTERS:

Photos typically include their locations, so you can use locations as keywords too. You get more hits with shorter words, and fewer hits as you become increasingly specific with increasing numbers of keywords. It’s best to use singular rather than plural (eg “volcano” instead of “volcanoes”).

As some words are included in others (“salt” within “basalt,” for example) you might want to be more specific to avoid getting a bunch of irrelevant photos.

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5409 images found

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Triassic diabase, Devils Den, Gettysburg,

Triassic diabase at Devils Den, Gettysburg, Pennsylvania (220908-86)

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Triassic diabase, Devils Den, Gettysburg,

Triassic diabase at Devils Den, Gettysburg, Pennsylvania (220908-85)

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Syncline at Sideling Hill, Maryland (vertical)

Mississippian clastic rocks of the Rockwell and overlying Purslane Formations, folded into a near-upright syncline at the Sideling Hill roadcut on I-68 in Maryland (220908-68)

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Syncline at Sideling Hill, Maryland

Mississippian clastic rocks of the Rockwell and overlying Purslane Formations, folded into a near-upright syncline at the Sideling Hill roadcut on I-68 in Maryland (220908-64)

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