Natural AttractionFort Yellowstone Overlook
Travertine terraces from Mammoth Hot Springs; calcium carbonate deposition in action.
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Norris Back Basin
Last Updated: January 2026
Type
Hydrothermal Basin / Geyser Basin
Accessibility
Generally accessible via extensive wooden boardwalks; some sections have inclines or uneven surfaces; wheelchair access good in most areas
Best Season
Late spring and early fall
Busiest Season
July and August
Features
Porcelain Basin, Back Basin; central hydrothermal activity; dense steam and mineral deposits; extensive boardwalk system
Elevation
7,400 ft
Overview
About This Attraction
Steam shrouds the white mineral plain of Porcelain Basin, while Back Basin vents hiss in the distance. This is a hydrothermal basin born of Yellowstone's active caldera plumbing, where a shallow magma chamber drives boiling springs and acid-altered rock colors. The 2.5-mile boardwalk loop threads between the basins, offering close-up views of one of Yellowstone's hottest and most dynamic thermal areas.
Quick Facts
Type
Hydrothermal Basin / Geyser Basin
Elevation
7,400 ft
Access
Generally accessible via extensive wooden boardwalks; some sections have inclines or uneven surfaces; wheelchair access good in most areas
Main Features
Porcelain Basin, Back Basin; central hydrothermal activity; dense steam and mineral deposits; extensive boardwalk system
What You'll See
Steam plumes over white mineral terraces, boiling springs and fumaroles, vivid mineral staining, and a network of wooden boardwalks weaving through the heated landscape
What Makes It Special
One of Yellowstone's hottest and most dynamic hydrothermal basins; highly acidic fluids alter rock; Steamboat Geyser eruption cycles and basin-wide shifts characterize its behavior
Best Time to Visit
Late spring (May–June) and early fall (September–October) offer lower crowds; morning light best for illuminating steam and color; avoid midday in summer due to glare and crowds.
Safety Considerations
Acidic hot springs and fumaroles pose burn risks; hydrogen sulfide gas present; boiling water and thin ground; keep to marked paths and rails; wet boardwalks can be slippery; bear spray recommended in Yellowstone
Visitor Tips
- Arrive early to grab a parking spot. Norris Geyser Basin’s lot holds 143 spaces, including 17 for oversize vehicles, and it fills up quickly in peak season. If it’s full, overflow parking may be found along Grand Loop Road.
- Stay on the designated boardwalks and trails. The ground around boiling pools and vents is extremely hot and thin; stepping off can cause severe burns and damage the delicate crust.
- Dress for variable weather and rugged footing. Wear sturdy, closed-toe shoes, bring water, and layer clothing for spring through fall; a hat and sunscreen are smart on bright days.
- Map out the loops. The Porcelain Basin loop is about 0.75 miles (1.2 km); the Back Basin loop is about 1.5 miles (2.4 km). If you walk both, plan on roughly 3 miles (4.8 km) of hiking.
- Wildlife awareness. Bear spray is a prudent precaution; travel with a companion if possible and keep a safe distance from wildlife. Never approach geysers or disturb the ground.
- Stay connected offline. Cell service is spotty in this area—download offline maps before you go so you can navigate without data.
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ℹ️ Data Sources
jsjgeology.net usgs.gov nps.gov yellowstone.net talesofthegoddard.com blogspot.com yellowstoneexplored.com nationalparked.com youtube.com wanderlog.com wereintherockies.com noahlangphotography.com parkrangerjohn.com reddit.com yellowstoneparknet.com yellowstonenationalpark.com thenomadexperiment.com boom-malaysia.com Google Reviews National Park Service YourNPGuide Editorial
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