Porkchop Geyser
Steaming Porkchop Geyser seen from the Norris boardwalk; a hydrothermal drama born at Yellowstone hotspot fault junction.
Read interpretive signs for vent status updates.
Look for steam bursts as conditions change with time.
Alpenglow potential on surrounding peaks; sunrise light over the basin
Hydrothermal explosions are possible; water is near-boiling; stay on boardwalks; crust around vents is thin and can collapse; sturdy shoes required; bear spray…
Natural Attraction
Steam threads the air above Porkchop Geyser as boardwalks loop around a vent and a crater rim. Mineral crust glints in pale light while heat radiates from the surface. This activity arises from a tectonic/volcanic hydrothermal system at Yellowstone's hotspot, where faulting funnels superheated water to the surface. Rocks up to 1.88 meters were hurled as far as 60 meters during the 1989 explosion.
Getting there & parking
- How To Get There
- From the Norris area, follow park roads to Norris Geyser Basin; park in the basin area and use the boardwalks that circle Porkchop Geyser.
- Distance From Entrance
- Varies
- Road Type
- Paved
- Parking Availability
- Parking is in Norris Geyser Basin's main lot by the visitor center; published capacity data isn't available, and the lot can fill quickly on peak days.
- Peak Fill Times
- Parking fills quickly in peak season; arrive early
- GPS Coordinates
- 44.72212, -110.7081
When to go
- Best Time To Visit
- Summer (June–August) is optimal; roads are open and light is favorable. Mornings offer softer light for photography; avoid mid-day crowds.
- Best Visit Times
- Early morning to avoid crowds and capture soft light on steam
- Sunrise Sunset Quality
- Alpenglow potential on surrounding peaks; sunrise light over the basin
- Best Season
- Summer
- Busiest Season
- Summer
- Seasonal Access
- Open in summer; spring/fall access variable; weather can change rapidly in Yellowstone
- Road Opening Dates
- Typically late spring through fall; check park alerts for closures
- Snow Lingering
- Snow can linger into late spring
- Winter Access
- Limited; boardwalks may be closed; not recommended without park guidance
- Weather Patterns
- Weather can change rapidly; afternoon storms common; cool at high elevation
What you will experience
- Attraction Type
- Thermal Feature
- Main Features
- Geyser vent, vent crater, steam plumes, boardwalk loop, acidic hot springs
- What Youll See
- A boardwalk loop around a steaming hydrothermal field; vents hiss and mineral crusts gleam; signs explain the processes; acidic waters and heat permeate the air
- Unique Characteristics
- Notable for dramatic behavior shifts: explosion crater 10–14 m across; rocks up to 1.88 m hurled 60 m; eruptions rose from 6–9 m to 20–30 m just before 1989
- Photo Opportunities
- Dawn or dusk steam halos; plumes backlit by sunrise; reflections on mineral crusts during calmer moments
- Photography Spots
- Boardwalk overlooks along the vent line; early light emphasizes steam plumes
- Best Viewpoints
- Boardwalk overlooks near the vent and crater; vantage points where sun angles highlight plumes
- Common Wildlife
- Bison, elk, bears
- Best Wildlife Times
- Early morning and late afternoon
- Geological Formation Type
- Geyser (Hydrothermal system) at a triple-fault intersection, Yellowstone hotspot
- Scientific Interest
- Hydrothermal dynamics; history of explosions; subsurface plumbing at a hotspot
Facilities, fees & access
- Entry Fees
- National Park entrance fee applies
- Permits Required
- No
- Restrooms Available
- Yes
- Restroom Type
- Flush
- Picnic Areas
- No
- Water Available
- Yes
- Cell Service
- Unreliable
- Interpretive Signs
- Yes
- Accessibility
- Boardwalk with gentle slopes; some sections uneven
- Accessibility Level
- Drive-up view; boardwalk accessible with gentle inclines; some sections may be uneven
- Nearby Services
- Norris Geyser Basin Museum and Visitor Center; restrooms; potable water
- Nearby Facilities
- Norris Geyser Basin Museum and Visitor Center; restrooms; potable water
- Family Friendly Notes
- Keep children on boardwalk; heat and steam hazards require close supervision
Safety
- Safety Considerations
- Hydrothermal explosions are possible; water is near-boiling; stay on boardwalks; crust around vents is thin and can collapse; sturdy shoes required; bear spray recommended; cell service unreliable
Nearby
- Nearby Attractions
- Norris Geyser Basin; Norris Museum and Visitor Center
- Connecting Trails
- Boardwalk network within Norris Geyser Basin
- Trailheads Here
- Boardwalk access from Norris Geyser Basin
Planning advice
- Insider Tips
- Read interpretive signs for vent status updates.
- Look for steam bursts as conditions change with time.
- Check the boardwalk for slick algae in the morning.
- Dress for cool high-elevation weather and bring a light jacket.
- Tips Advice
- - Stay on the boardwalk; ground around hot springs and vents is thin and scalding. Don’t step off marked paths. - Wear sturdy shoes to handle uneven boardwalk sections. - Carry bear spray and stay alert for wildlife in Norris Basin. - Cell service is limited here—download maps or note your route before you go. - Thermal water can reach near-boiling temperatures; do not touch vent openings or any discolored areas.
More details
- Park Area
- Norris Geyser Basin
- Elevation Feet
- 8244
- Visitor Center Present
- Yes
- Guided Tours Available
- No
- Fishing Nearby
- No
- Swimming Allowed
- No
- Boating Allowed
- No
- Climbing Areas
- No
- Review Summary
- Porkchop Geyser delivers a direct, high-stakes view into Yellowstone's active hydrothermal system. The drive-up boardwalk makes it accessible, but the hazard of boiling water and unstable crust demands strict attention to safety and signage. The site also serves as a historical case study of hydrothermal behavior and explosive potential in a tectonically complex setting.
Location
Photos
Frequently asked questions
Do I really need to arrive before 7am to get parking?
Parking fills quickly in peak season; arrive early or expect overflow; Norris Basin can be busy by mid-morning.
Is it worth the short boardwalk to Porkchop Geyser?
Yes. The loop provides a direct view of a dynamic hydrothermal system with a documented explosion history, all within easy access from Norris.
Can I see eruptions from the boardwalk?
Eruptions are variable; you may see steam plumes and surface activity, but guaranteed eruptions are not guaranteed—conditions shift with water chemistry and pressure.
Will my 65-year-old mother be able to walk to the viewpoint?
Boardwalks are generally accessible, with mostly level paths; some sections may have gentle inclines. Plan for short rests and steady pacing.
Is the water actually blue, or is that just photos?
Color comes from mineral content and lighting; the plume and water can appear blue-green under certain conditions. Real appearance varies with light and season.
More at Yellowstone National Park
Grand Prismatic Spring
Rainbow rim of a hot spring; colors arise from thermophiles in Yellowstone's volcanic system.
Yellowstone Lake
Caldera lake tilted by resurgent domes; hydrothermal vents dot the lakebed.
Lake Butte Overlook
Panoramic view of Yellowstone Lake from the caldera rim; distant Tetons on clear days.
Artist Point
Lower Falls overlook; canyon walls colored by hydrothermal alteration of rhyolite.
Gibbon River
84 ft Gibbon Falls; river through hydrothermal basins along Grand Loop Road.
Gibbon Falls
84-foot cascade over an ancient Yellowstone lava flow; drive-up overlook with a wheelchair-friendly path.
Sources
- montana.edu
- nps.gov
- geoscienceworld.org
- usgs.gov
- npshistory.com
- wikipedia.org
- eos.org
- whoi.edu
- quora.com
- National Park Service
- Google Reviews
- YourNPGuide Editorial
Editorial review: YourNPGuide Editorial Team. Information is compiled from official sources, verified traveler reviews, and editorial research; no firsthand visit is implied unless explicitly documented. Learn how YourNPGuide works.
Last updated January 2026. Report an issue.