Anther day we spent some time visiting a couple of the lesser known areas near the Upper Geyser Basin: Black Sand Basin and Biscuit Basin.
Cliff Geyser
Ragged Spring
A very colorful hot spring
Thermal feature runoff into Iron Creek
Emerald Pool
Brown Spouter Geyser
Sunset Lake
A half-alive tree
After Black Sand Basin we stopped at Biscuit Basin.
Black Opal Pool
Intricate geyserite formations
Saphhire Pool
Jewel Geyser
Avoca Spring
Mustard Spring
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