Wiktionary
n. (label en British spelling) (alternative spelling of sulfur spring English)
Wikipedia
Sulphur Spring (also known as Crater Hills Geyser), is a geyser in the Hayden Valley region of Yellowstone National Park in the United States. Sulphur spring has a vent Temperature of although the actual temperature of the spring is . It is located in the Crater Hills area of Hayden Valley about west of the Grand Loop Road.
Usage examples of "sulphur spring".
Our hunters brought us ten deer, and we shot two out of a herd of buffalo that came to water at Sulphur Spring.
In traversing this plain, they passed, close to the skirts of the hills, a great pool of water, three hundred yards in circumference, fed by a sulphur spring, about ten feet in diameter, boiling up in one corner.
One sniff and I decided that it was the run-off from a sulphur spring.