Parking
The Natural Bridge Trailhead is south of Bridge Bay, off Grand Loop Road, and has limited parking. The Bridge Bay Marina lot is an alternate start, but it adds the campground approach.

Yellowstone National Park, WY · MT · ID
A gentle forest walk to a rhyolite arch above Bridge Creek.
Overview
Map & elevation
Plan your hike

The highest, rockiest slopes around here are a summer buffet for grizzly bears.
Yellowstone Tour Guide
Parkwolf is a GPS audio tour guide for Yellowstone National Park. As you drive, it chimes in with what’s ahead: hidden gems, upcoming stops, history, geology, and wildlife, right through your car’s speakers.
See the Yellowstone audio tourRecorded for this trailhead
Natural Bridge Trailhead“The Natural Bridge trailhead is coming up, for a forest walk to a rock arch carved by Bridge Creek.”
Plays as you drive up to this trailhead in the Parkwolf Yellowstone Tour Guide.
More stories near here in the app
Trail guide
From the Natural Bridge Trailhead off Grand Loop Road, this is an easy 2.5-mile out-and-back, usually one to two hours. The path goes through forest, then follows an old service road toward Bridge Creek and a natural arch cut through rhyolite. It is short and mostly gentle, with the bridge as the clear payoff. The National Park Service describes the trail as semi-paved and accessible.
The approach starts under trees, then opens onto an old service road with more sun. Near the bridge, follow the walking path down to the creek rather than stopping on the road. NPS lists the complete walk as 2.5 miles round trip; a separate breakdown from this road-side access comes out closer to 2.3, so plan for the longer estimate.
Bridge Creek cut through a rhyolite cliff to make the natural bridge. You can see the arch from its base without climbing. The top is closed to hiking and biking, despite older directions that describe a steep switchback. Rocks beside the creek can be wet and slippery. For a photo, let the steep drainage catch the morning light before you reach the base.
Use the small Natural Bridge Trailhead south of Bridge Bay, off Grand Loop Road; parking is limited. Starting at Bridge Bay Marina adds the campground approach and is a separate, longer version, reported at about 3.1 miles round trip. This record uses the road-side trailhead and does not include those extra miles.
Wildlife
713 sightingsGrizzly BearMost seen around 6 AMSighting map
743 sightingsWolfMost seen around 6 AMSighting map
5,273 sightingsBisonMost seen around 7 AMSighting map
3,258 sightingsElkMost seen around 7 PMSighting map
397 sightingsMooseMost seen around 7 PMSighting map
1,494 sightingsBlack BearMost seen around 7 PMSighting mapSighting maps show where each species has been reported across Yellowstone. Wildlife moves, so no sighting is guaranteed.
Keep exploring
ModerateElephant Back Mountain Trail3.9 mi · 2.5 hr · 2.5 mi awayA steady forest climb to a broad Yellowstone Lake view.
ModerateHoward Eaton Trail: Fishing Bridge to Canyon13.5 mi · 7 hr · 4 mi awayA long river-side traverse opens into Hayden Valley meadows.
EasyPelican Creek Nature Trail0.8 mi · 45 min · 4.2 mi awayA short forest loop opens onto Pelican Creek and Yellowstone Lake.
EasyStorm Point Trail2.3 mi · 1.5 hr · 5.7 mi awayA short loop from Indian Pond to a wind-swept Yellowstone Lake point.
ModeratePelican Valley Trail6.2 mi · 4 hr · 6.2 mi awayCross open meadows to a creekside overlook in prime grizzly country.
ChallengingPelican Cone Trail22.3 mi · 10 hr · 6.2 mi awayA long backcountry walk to a rare summit fire lookout.
EasyMud Volcano Trail0.6 mi · 1.5 hr · 6.5 mi awayA compact boardwalk loop through bubbling Yellowstone mudpots.
ChallengingThorofare Trail33.1 mi · 16 hr · 8.1 mi awayA 33-mile one-way trek from lake shore into remote river country.
Picnic area · 0.2 mi awayBridge Bay Picnic AreaA lakeside picnic with boats moving through Bridge Bay
Sight · 0.3 mi awayBridge Bay MarinaRent a boat or take a guided trip onto Yellowstone Lake.
Campground · 0.7 mi awayBridge Bay CampgroundA lake-country base where bison sometimes wander through camp.
Picnic area · 1 mi awayGull Point Picnic AreaA shaded lunch stop with a short walk to the lake.
Sight · 1 mi awayNatural BridgeA 51-foot arch carved by Bridge Creek, reached on a forest walk.
Picnic area · 2.1 mi awayLake Village Picnic AreaFour picnic tables for a lakeshore meal break.
Lodging · 2.2 mi awayLake Yellowstone Hotel and CabinsA historic hotel with Yellowstone Lake views and a grand old lobby.
Store · 2.4 mi awayLake General StoreIce cream and general supplies in a 1919 octagonal lakeside shop.Parkwolf’s Yellowstone ranking