Old Faithful & Geyser Hill Loop is a 1.6 mi trail with 60 ft of climbing — about 35m of moving time before you stop for anything. Dogs are not allowed, and it takes a stroller. About 5% of it is shaded, and there is water on the route to refill from.
Underfoot & overhead boardwalk, thermal
1.6 mi and 60 ft of climbing work out to 35m of moving time — before you stop for anything. There is water on the route to refill from. Informational only, not medical advice.
Get the fall refuel plan →NAISMITH · CDC · ACSM · how these numbers are worked out
In July, Yellowstone National Park runs around 78°F at the main visitor elevation, and this route gives you almost nothing to hide under.
49°F · Partly Sunny · wind 1 to 7 mph
NOAA forecast for Yellowstone National Park — not for this trailhead specificallyThe last day to enjoy most of the park in a regular vehicle is October 31. Most roads will open to guided oversnow tours on December 15 (weather permitting). The road between the North and Northeast entrances is the...
Live NPS alert for Yellowstone National Park · sourceExpect a single lane of traffic with up to 15-minute delays, 24 hours a day, seven days a week, from April 1 through November 24, 2026. Oversized/overweight vehicles (8'6"+ wide, 75'+ long, 80,000 lbs+ gross vehicle...
Live NPS alert for Yellowstone National Park · sourceAbout 35m of moving time for 1.6 mi and 60 ft of climbing — that is Naismith's planning rule, so it counts walking only, with nothing for photos, lunch or the queue at the top.
Planning figures for that much moving time are 0.3–0.6 L, cool day to hot. There is water on the route, so you can refill. Informational only, not medical advice.
No — Old Faithful & Geyser Hill Loop is closed to dogs. Our Yellowstone National Park dog guide lists the trails where they are welcome, plus boarding and the nearest 24/7 vet.
We rate it comfortable from age 0. It takes a stroller. That rating is our own hand-check of length, footing and exposure, not an official NPS grade.
About 5% of the route is shaded, and Yellowstone National Park peaks around 78°F in its hottest month. The less shade a route has, the more of it you want behind you before midday.
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