YNP Thermal Feature: Sulphur Caldron

Thermal Map; Hayden Valley (Map) -> Mud Volcano Area -> Sulphur Caldron


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Approximate Location of Sulphur Caldron:

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Sulphur Caldron
YNP Thermal Inventory ID: MV115
Lat: 44.6283846
Lon: -110.433402
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Sulphur Caldron is one of the most acidic springs in Yellowstone. Its turbulent waters have a pH of approximately 1-2, which is about as acidic as car battery acid or stomach fluids. Its name comes from the large amounts of free sulphur in its waters.

*Adapted from the NPS Mud Volcano Trail Guide

Data Available:

YNP Thermal Inventory Data

Date	Description	pH	Temp (°C)	Vent Temp (°C)	Conductance (µmhos/cm)
07/24/1998		2.4	57.2	0	3800

USGS Geochemical Data¹

*Indicates an unofficial name

Note: The YNP RCN is working closely with the YNP Spatial Analysis Center to provide the most accurate and up-to-date information on geothermal features, however, errors do exist. Any questions or concerns regarding features found on this site should be directed to the YNP RCN before contacting the Spatial Analysis Center.