Three very patient paleontology grad students give you a sense of scale at Castle Rock, Kansas.
A detail of the west side of the "Snake" roadcut. Rock hammer for scale.
Thin, tan carbonatite dikes crosscut the greenstone in this roadcut west of Wawa, Ontario.
The original version of Aurelie can be found at: www.gigapan.org/viewGigapan.php?id=8382
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