Excelsior Geyser Crater

Also known as: Indigo Spring
Gallatin County, Wyoming · Near West Yellowstone
44.5260°N, 110.8350°W · 7,240 ft
199°F 53°F air · Good soaking weather 7,240 ft Open Roadside National Park Service Camping nearby (20.8 mi)
Geyser: Not a Soaking Spring

Excelsior Geyser Crater is a geyser, not a traditional hot spring. These geothermal features can be extremely dangerous. Boiling water, toxic gases, and unstable ground are common hazards. Do not attempt to soak.

Excelsior Geyser Crater is what is left of a big fountain geyser that no longer erupts. It sits in the Midway Geyser Basin of Yellowstone National Park, on the Gallatin County side of Wyoming, with West Yellowstone the closest town on record at around fourteen miles. The water is near boiling. OpenStreetMap tags this spot as Indigo Spring, so expect to see both names. Anyone can visit, and visiting means looking. Soaking is out of the question at that heat.

Location

This one is roadside. The Grand Loop Road passes a couple hundred feet from the crater on National Park Service land. The basin sits at roughly 7,200 feet and the climate on file is cold, with a hundred and fifty inches of snow in a typical year. Expect a long winter.

The record lists December through February as the best months, and since those are also the snowiest, winter access depends entirely on what the park opens up. Roadside access, open to the public. The closest campground on file is the Big Springs group area over at Island Park, about twenty miles away. The water is near boiling and will scald instantly. Keep well back from the rim.

History of Excelsior Geyser Crater

Excelsior was a fountain-type geyser that went dormant, and the name on the map today is Excelsior Geyser Crater. Yellowstone superintendent P. W. Norris named it in 1881. OpenStreetMap records the same spot as Indigo Spring.

Monthly Climate
17°
Jan
19°
Feb
27°
Mar
32°
Apr
40°
May
52°
Jun
63°
Jul
62°
Aug
52°
Sep
36°
Oct
24°
Nov
16°
Dec
Annual Precip: 29.5 in Annual Snow: 151.6 in
Best Time to Visit
December Air 16°F · Water 199°F · +183° contrast
January Air 17°F · Water 199°F · +182° contrast
February Air 19°F · Water 199°F · +180° contrast
December offers 47°F more contrast than July
Current Conditions
53°F
E 16.9 mph 44% Good soaking weather
Labor Day 58° Low 41° Showers And Thunderstorms then Mostly Sunny 88% precip
Spring is +141° warmer
Tuesday 61° Low 31° Sunny
Spring is +138° warmer
Wednesday 67° Low 32° Sunny 1% precip
Spring is +132° warmer
Thursday 68° Low 35° Sunny
Spring is +131° warmer
Friday 66° Low 39° Sunny 8% precip
Spring is +133° warmer
Where to Stay

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Nearby Camping
Big Springs Grp. Area Island Park 20.8 mi away

Overview Big Springs Group Area is located 22 miles south of West Yellowstone, Montana in beautiful Island Park, Idaho at an approximate elevation of 6,300 feet. Visitors love Island Park for its world-class fishing and outstanding scenery and wildlife viewing opportunities.Recreation Big Springs is the headwaters of Henry's Fork and is one of the largest springs in the country. Henry's Fork is considered one of the best fly-fishing streams in the nation. Fishermen cast for rainbow and brook...

Reservable Yes
Reserve on Recreation.gov →
Mile-High Advisory 7,240 ft

Excelsior Geyser Crater sits at 7,240 feet above sea level, way above the mile-high mark. You may not feel the altitude strongly, but hot water still dehydrates you faster at elevation. UV is about 29% stronger than at sea level, so bring sunscreen and drink more water than you normally would.

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Temperature
199°F
Warm Hot Boiling
Water Temp 199°F (93°C)
Avg Air Temp 37°F
Above Ambient +162°F
Access
Open
Road Access Roadside
Nearest Road Grand Loop Road
Distance to Road 222 ft
Land
Ownership Federal
Agency National Park Service
Designation National Park
Unit Yellowstone National Park
Manager National Park Service
Protection 1 - Permanent protection, natural state
Frequently Asked Questions
What is the water temperature at Excelsior Geyser Crater?
Excelsior Geyser Crater has a water temperature of 199°F (93°C). This is considered a hot spring, well above body temperature.
Where is Excelsior Geyser Crater located?
Excelsior Geyser Crater is located in Gallatin County, Wyoming at 7,240 feet elevation, near West Yellowstone. Coordinates: 44.5260°N, 110.8350°W.
How do I get to Excelsior Geyser Crater?
Excelsior Geyser Crater has Roadside road access, with the nearest road being Grand Loop Road (222 ft from the road).
Is Excelsior Geyser Crater free to visit?
Excelsior Geyser Crater has Open access. It is managed by National Park Service.
Can I camp near Excelsior Geyser Crater?
Yes, Big Springs Grp. Area Island Park is located nearby (20.8 miles away).
Is it safe to soak at Excelsior Geyser Crater?
No, not at the source. The water at Excelsior Geyser Crater reaches 199°F, which can cause severe burns within seconds. Look for cooled side pools or downstream stretches, and test with a hand before anything else.