Seven Mile Bridge
Sunset over a grassy marsh beside a paved road as a bright pickup sits on the right in Yellowstone National Park.
Broad river in foreground reflects a pine forest and a rounded granite peak under blue sky in Yellowstone National Park.
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Seven Mile Bridge

Trails★★★★☆
Last Updated: January 2026

Overview

About This Trail

13.9 miles one-way through open valleys with a relatively flat grade. Endurance is the name of the game, and wildlife presence keeps you alert. Prepare with bear spray, water, and a planned shuttle or two-car system to complete the route safely.

Highlights

Difficulty Level

Moderate

Trail Highlights

Open valleys with wildlife sightings in a long-distance hike; early light yields better wildlife photography and solitude

Insider Tips

• Start before sunrise to catch wildlife and avoid heat • Carry bear spray and know how to deploy • Trekking poles help at river crossings and stability • Filter water from creeks; carry extra water • Coordinate a shuttle or two-car plan for the one-way hike

Best Season to Hike

Summer and early fall (July–September)

Hiking Tips

  • Carry 2 liters water minimum
  • Bear spray and bear-safety knowledge required in bear country
  • Start early, pace steady; shade is limited in open valleys
  • Filter creek water and plan a shuttle/two-car drop-off for the one-way hike

Family Info

Not recommended for young children due to bear country and potential river crossings

ℹ️ Data Sources
📖 nps.gov Google Reviews 🏞️ National Park Service 📝 YourNPGuide Editorial

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