Sullivan Bridge

About Sullivan Bridge

The Marias River starts in Glacier County at the confluence of the Two Medicine River and Cut Bank Creek. It flows generally southeastward from this point and is impounded by the Tiber Dam to form Lake Elwell. About 50 miles downstream of the dam, it receives its principal tributary, the Teton River, shortly before entering the Missouri River at Loma. T he Marias River was named in 1804 by Meriwether Lewis for his cousin, Maria Wood. There are three BLM river access sites: Sullivan Bridge launch site, Pugsley Bridge Recreation Area, and Moffat Bridge Recreation Area.Located at the headwaters of the Marias River, the confluence of Two Medicine River and Cut Bank Creek, this scenic launch point has a gravel road access and beautiful riparian vegetation adjacent to sheer cliffs.

How to Get There

On Hwy 2, go about four miles east of Cut Bank and turn south onto the Sullivan Bridge Road. The recreation site is on the north side of the river. Roads within the site may be impassable when wet.

Plan Your Visit to Sullivan Bridge

Heading to Sullivan Bridge? A few things to know before you go:

• Reservations: popular sites fill up fast — check Recreation.gov 6 months in advance
• Fees: day-use and camping fees vary; check current rates on the official park page
• Trash & pack-out: follow Leave No Trace principles
• Wildlife: store food in bear boxes where provided; never feed wildlife
• Weather: the 5-day forecast above is updated every 6 hours; verify just before you go

References & Official Resources

• Official Recreation.gov page
• View on OpenStreetMap
• Driving directions (Google Maps)