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Grand Prismatic Spring - Silica Terraces - calothrix habitat;
Hot Springs, Midway & Lower Geyser Basin;
Bob Lindstrom;
April 1996
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Grand Prismatic Spring;
Hot Springs, Midway & Lower Geyser Basin;
Jim Peaco;
August 1994
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Aerial view of Grand Prismatic Spring;
Hot Springs, Midway & Lower Geyser Basin;
Jim Peaco;
July 2001
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Silex Spring;
Hot Springs, Midway & Lower Geyser Basin;
Jim Peaco;
September 18, 2003
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