Yellowtail Afterbay Reservoir
Fishing and stocking
Rainbow trout water, stocked once in 2026; 6,239 fish reported.
Montana · see it on the national map
The year here
stocked last 7 days announced ahead · tap a tick for details
What swims here
Rainbow trout
Stocking record 2026
Agency feed checked today.
| Date | Species | Size | Fish | Status |
|---|---|---|---|---|
| May 6 | Rainbow trout | 6,239 | completed |
When to fish Yellowtail Afterbay Reservoir
| Major periods (~2 h) | Minor periods (~1 h) | |
|---|---|---|
| Today | 9:52-11:52 am and 10:15 pm-12:15 am | 4:11-5:11 am and 4:21-5:21 pm |
| Tomorrow | 10:39 am-12:39 pm | 5:24-6:24 am and 4:41-5:41 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 6
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 trout (rainbow trout stocked 1 time here in 2026, stillwater)
| Casting spoons | 1/8 to 1/4 oz in fluorescent or metallic; count down until you find the depth |
| Small crankbaits | trout-pattern cranks trolled or slow-retrieved off points |
| Slip bobber and jig | 1/32 oz marabou jig or waxworm suspended at cruising depth |
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 |
|---|---|---|
| Anita Reservoir | 43 mi | Aug 4 |
| Lake Elmo | 45 mi | Sep 14 |
| Rattlesnake Reservoir | 47 mi | May 6 |
| Tongue River Reservoir | 58 mi | May 14 |
| Wild Bill Lake | 71 mi | Aug 24 |
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