RF2CTHHDF–Doublet Pool, Upper Geyser Basin Area, Yellowstone National Park

RF2DG88M3–Colorful geothermal feature, Doublet Pool with scalloped geyserite deposits of opaline silica around the border, water about 190○f rare short eruption

RFJ1R7FK–Doublet pool with mineral deposits, Upper Geyser Basin, Yellowstone National Park, Wyoming, USA

RF2CTHHDG–Doublet Pool, Upper Geyser Basin Area, Yellowstone National Park

RF2DG88M0–Colorful geothermal feature, Doublet Pool with scalloped geyserite deposits of opaline silica around the border, water about 190○f rare short eruption

RFCT73X5–Doublet Pool, Upper Geyser Basin, Yellowstone National Park

RFKFB0BF–Doublet Pool, a double pool hot spring in Upper Geyser Basin in Yellowstone National Park

RMDF98GD–Elk265-1265 Wyoming, Yellowstone National Park, Upper Geyser Basin, Geyser Hill, Doublet Pool

RF2DG88M2–Colorful geothermal feature, Doublet Pool with scalloped geyserite deposits of opaline silica around the border, water about 190○f rare short eruption

RME739J1–Doublet Pool, Firehole River and Castle Geyser, Upper Geyser Basin, Yellowstone National Park, UNESCO Site, Wyoming, USA

RFDE2MCC–Hot spring, limestone sinter, Doublet Pool, Geyser Hill, Upper Geyser Basin, Yellowstone National Park, Wyoming

RF2DG88K1–Colorful geothermal feature, Doublet Pool with scalloped geyserite deposits of opaline silica around the border, water about 190○f rare short eruption

RM2C689GW–High angle view of Doublet pool, Upper Geyser Basin, Yellowstone National Park, Wyoming, USA