Natural Bridge Trail

A natural bridge formation made of rock in a forest.

This 2.5-mile semi-paved loop is manageable—you'll hike quiet forest and earn a 51-foot natural bridge carved by water. Real payoff: Bridge Creek cut through solid rhyolite to expose geology in action. The catch: early summer closures protect bears during spawning season. Verdict: Easy hike, legitimate scenery, but confirm opening dates at Fishing Bridge Visitor Center first.

Quick facts

Distance Miles: 2.5
Route Type: Out-and-back
Difficulty Level: Easy
Elevation Gain Feet: 100

Trail profile

Distance Miles: 2.5
Route Type: Out-and-back
Difficulty Level: Easy
Elevation Gain Feet: 100
Estimated Time: 1 to 2 hours
Trail Surface: Semi-paved forest path transitioning to gravel service road
Trail Features: 51-foot natural bridge
Bridge Creek
Forest canopy
Gravel service road
Rhyolite geology
Trail Highlights: A 51-foot natural bridge carved from rhyolite rock by Bridge Creek, demonstrating how water shapes stone over time

Trailhead & access

Trailhead Location: Bridge Bay Marina parking lot near the campground entrance road
Parking Fill Time: Full by mid-morning on summer weekends
Shuttle Required: 0

Permits & conditions

Fees: $35 entrance fee per private vehicle (valid 7 days); no trail-specific fee
Trail Status: Typically open late June through early November; seasonal early-summer closure for bear protection
Seasonal Closures: Early summer closure (typically late May through mid-June) when bears congregate to feed on spawning trout at Bridge Creek. Exact reopening date varies annually; contact Fishing Bridge Visitor Center.

Facilities & rules

Restrooms At Trailhead: 1
Water Sources: Bridge Creek is present along the trail; water is untreated—use caution on slippery rocks
Accessibility: Semi-paved with gravel service road—mostly flat and gentle. Steep optional switchback is not accessible. Creek rocks are slippery when wet.

Safety & strategy

Hazards: Wet/slippery creek rocks
Seasonal bear activity (early summer)
Closed bridge top (do not climb)
Steep optional switchback
Hazard Details: Bridge Creek rocks are wet and slippery, especially in early season when water levels are high. Early summer closures protect hikers from bears concentrated at the creek during spawning season. The bridge top is permanently closed to protect the fragile geologic resource and visitor safety. The optional switchback offers steep exposure if attempted.
Cell Service: Spotty to none; Yellowstone interior has limited coverage
Crowd Level: Moderate—popular day hike from Bridge Bay, but quieter than major park attractions
Peak Crowd Times: Mid-morning to afternoon on summer weekends and July/August days
Best Season: Late June through September
Best Time To Visit: Mid-June through September. Confirm the exact trail opening at Fishing Bridge Visitor Center—early summer closures vary by year. Arrive by 8 AM to secure parking at Bridge Bay. June mornings offer coolest temps and lightest crowds.
Tips Advice: Carry 2L water minimum—zero shade on the service road section.
Bridge Creek rocks are slippery when wet—wear water-resistant boots or approach carefully.
The bridge top is closed to hikers. Skip the optional switchback and enjoy geology from the creek base.
Make noise while hiking—early season reopening means bears are unpredictable.
Bring trekking poles if your knees are sensitive to descent.

More details

Park Area: Bridge Bay / Central Yellowstone
Trail Markers: Well-worn path; mostly obvious route with markers where trail transitions from forest to service road
Dogs Allowed: No
Biking Allowed: Yes, on service road section; bike trail begins just south of marina off Grand Loop Road
Shade Level: Partial shade in forest section; open sun on service road—bring a hat
Emergency Contacts: Fishing Bridge Visitor Center for trail information; dial 911 for emergencies
Map Recommended: 0
Snow Dates: Most snow melts by late June; possible late-season snow into October
Mud Season: Likely through late May when snowmelt and spring rain peak
Bug Season: Mosquito season mid-summer through early fall, especially near Bridge Creek
Insider Tips: The switchback up the bridge is optional and closed at the top anyway—skip it for an easier experience.
Locals use the service road as a bike route; consider cycling to reduce knee strain on descent.
Call Fishing Bridge Visitor Center in early June to ask about opening dates—they vary year to year.
Park early: arrival by 8 AM guarantees a spot; later arrivals may face a full lot.
Family Friendly Notes: Suitable for families with decent fitness; easy terrain keeps kids engaged. The optional switchback is short and steep—hand-holding recommended for young children. Creek crossing requires careful footing on slippery rocks.
Nearby Facilities: Bridge Bay Marina provides supplies, gas, and ranger assistance. Fishing Bridge Visitor Center (south) offers information. Full services available at Canyon Village.
Review Summary: Hikers consistently praise the geologic payoff on an easy, forgiving trail. The 51-foot natural bridge carved by water delivers visual impact. Most appreciate the early-summer closure—it protects bears and preserves a fragile resource.

Frequently asked questions

Is this suitable for kids?

Yes, for ages 8+. Easy terrain and a concrete reward keep them interested. Watch them on wet rocks near the creek.

Can I hike this alone?

Yes; the trail is well-traveled. Make noise for bears, especially early season when the reopened trail gets renewed bear activity.

Why is this closed in early summer?

Bears congregate at Bridge Creek to feed on spawning trout. The closure protects both bears and hikers. Call Fishing Bridge Visitor Center for the exact opening date each year.

What if I have vertigo?

The main trail stays low and away from drop-offs. The optional switchback is steep and exposed—skip it. You see the same geology from the base.

Do I need special gear?

Trekking poles help on descent if your knees are sensitive. Water-resistant boots or careful footing on wet rocks near the creek is essential. Otherwise, standard day-hike gear suffices.