Tongue River Reservoir
Fishing and stocking
Walleye water, stocked once in 2026; 250,000 fish reported. A 2,158-acre reservoir.
Montana · see it on the national map
Water temp 55 °F at Tongue River at State Line nr Decker MT, 7 km away USGS site 06306300 · read 6:15 pm this evening
The year here
stocked last 7 days announced ahead · tap a tick for details
What swims here
Walleye
Stocking record 2026
Agency feed checked today.
| Date | Species | Size | Fish | Status |
|---|---|---|---|---|
| May 14 | Walleye | 250,000 | completed |
When to fish Tongue River Reservoir
| Major periods (~2 h) | Minor periods (~1 h) | |
|---|---|---|
| Today | 9:48-11:48 am and 10:11 pm-12:11 am | 4:06-5:06 am and 4:17-5:17 pm |
| Tomorrow | 10:34 am-12:34 pm and 10:58 pm-12:58 am | 5:19-6:19 am and 4:37-5:37 pm |
Moon: waxing gibbous, 93% lit. These are solunar periods, the traditional feeding-time theory: majors around the moon's transit overhead and underfoot, minors around moonrise and moonset. Theory, not a measurement. Times are Mountain Time (MDT).
What the record actually says
- Last stocked May 14
- Water 55 °F at a gauge 7 km away
Computed this evening, Oct 23 · Montana fishing forecast
Gear for this water
It has been a while since the trucks came. The holdovers have spread out and wised up; downsize and fish natural.
For the walleye (walleye stocked 1 time here in 2026, stillwater)
| Crawler harness | slow-trolled over flats and breaks once water warms |
| Medium spinning rod | 6.5 to 7 ft medium, 8 lb line; sensitivity beats power here |
| Jigging raps and blade baits | vertical over deep structure in the cold months |
Suggestions follow from what the state actually stocks here and what kind of water it is, nothing else. No sponsored placements.
Nearby stocked waters
The closest waters with stocking pages of their own, straight-line miles from this one.
| Water | Distance | Most recent |
|---|---|---|
| Cow Creek Reservoir | 32 mi | Jun 30 |
| Mud Turtle Reservoir | 43 mi | May 6 |
| Yellowtail Afterbay Reservoir | 58 mi | May 6 |
| Anita Reservoir | 84 mi | Aug 4 |
| Lake Elmo | 98 mi | Sep 14 |
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