YNP Thermal Feature: Grand Prismatic Spring

Thermal Map; Firehole River Drainage (Map) -> Midway Geyser Basin (Map) -> Excelsior Group -> Grand Prismatic Spring


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Approximate Location of Grand Prismatic Spring:

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Grand Prismatic Spring
YNP Thermal Inventory ID: MEG003
Other Unoffical Name(s): Great Spring*, Great Hot Spring*, Mammoth Hot Spring*, Hot Spring Lake*, Boiling Coral Well*, Prisim Lake*, Prismatic Lake*, Emerald Lake*, Paradise Lake*
Lat: 44.5250489
Lon: -110.83819
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Data Available:

YNP Thermal Inventory Data

Date	Description	pH	Temp (°C)	Vent Temp (°C)	Conductance (µmhos/cm)
06/30/1998	Next to boardwalk on algae	8.3	23.33	0	1500

*Indicates an unofficial name

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