Category:Old geological cross sections of Colorado
Media in category "Old geological cross sections of Colorado"
The following 3 files are in this category, out of 3 total.
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Transactions (1871) (14576893597).jpg 3,660 × 1,998; 809 KB
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Transactions (1871) (14763056502).jpg 4,032 × 1,484; 803 KB
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Transactions (1871) (14783210093).jpg 3,536 × 2,180; 1.06 MB
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