Montana Fishing

Big Donaldson Reservoir

Big Donaldson Reservoir represents a remarkable Reservoir destination in western Montana for Montana anglers. Big Donaldson Reservoir is located near western Montana at coordinates 44.55, -106.44. The remarkable reservoir offers depth variation and structure that Largemouth Bass rely on. Local anglers frequently report success with Largemouth Bass, Crappie, Catfish at Big Donaldson Reservoir.

Reservoir Montana 44.5500, -106.4400
Updated 2026-04-29

Location

View on Google Maps 44.5500, -106.4400

Target Species

Largemouth BassLargemouth BassCrappieCrappieCatfishCatfish

Fishing Tips

  • Focus on timber stands during dawn when Largemouth Bass are active.
  • Focus on submerged ridges during dawn when Largemouth Bass are active.
  • Focus on submerged ridges during first light when Largemouth Bass are active.

Fishing Techniques for Big Donaldson Reservoir

Focus your efforts around natural structure: points, submerged timber, weed edges, and rocky areas tend to hold fish in Montana reservoirs. Dawn and dusk are peak feeding windows, especially during warmer months when fish move shallow. A varied approach — starting fast to locate active fish, then slowing down — pays off.

What to Expect at Big Donaldson Reservoir

Take time to read the water when you arrive — baitfish activity, bird movement, and surface disturbances all signal where fish are feeding. The character of this reservoir changes with the seasons, so repeat visits often reveal new patterns and productive spots you missed before.

Regulations

Montana fishing license required. Verify regulations with Montana Fish, Wildlife and Parks before fishing.

Fishing Tips for Big Donaldson Reservoir

Big Boy Reservoir

Bill Yates Reservoir

Ben Reservoir

Frequently Asked Questions

Check local tourism information or contact Montana Fish, Wildlife and Parks for details on facilities and parking.

Fish sizes vary seasonally. Local fishing reports provide current catch information.