Lake Elwell (Tiber Reservoir)
A large prairie reservoir on the Marias River behind Tiber Dam, about 18 miles southwest of Chester in north-central Montana. It is known for walleye and northern pike, with rainbow trout also in the lake.
Species
Fishery rating out of 5.
Walleye
The main draw. Work points and drop-offs with jigs and crawler harnesses, and troll crankbaits in summer.
Northern Pike
Shallow bays and creek arms in spring. Spoons, spinnerbaits and large swimbaits.
Rainbow Trout
Cruise open water. Troll spoons or still-fish bait from shore. Rainbow and brown trout also live in the Marias River below the dam.
Boat launches
4 launch sites. Fees and hours change, so confirm before you go.
- Tiber MarinaMarinaConcession marina on Bureau of Reclamation land. Boat ramp, store, fuel, fish cleaning station, campsitesDirections ↗
- Willow CreekRampBoat ramp in Liberty CountyDirections ↗
- North BootleggerRampBoat ramp on the Toole County sideDirections ↗
- South BootleggerRampBoat ramp on the Toole County side, off Bootlegger TrailDirections ↗
Size & creel limits
Minimum size and daily limit for each species in Lake Elwell (Tiber Reservoir) are published by the state. Look up the current size and creel limits for this lake directly: Montana Fish, Wildlife & Parks ↗
Bait & tackle nearby
No shops listed yet for this lake. Use the search link below.
Search more bait shops near Lake Elwell (Tiber Reservoir) ↗Local tips
- Water levels normally swing about 17 feet a year, so ramps and shorelines change through the season.
- This is open prairie water. Wind can build big waves fast, so watch the forecast.
- Services are limited. The marina near the dam is the main place for fuel and supplies.
View on interactive map
Zoom and pan on a street, satellite or terrain map. Red pins are boat launches.
More Montana lakes
Canyon Ferry Lake Lake Koocanusa Hungry Horse Reservoir Hebgen Lake Noxon Rapids Reservoir Bighorn Lake Clark Canyon Reservoir Nelson Reservoir All Montana lakes →
Always wear a life jacket and check your state's current regulations before you fish.