Mantua Reservoir
Fishing and stocking
Rainbow trout water; 2 stockings on the 2026 record, spread February to September. A 515-acre reservoir, and one of 7 stocked waters on the Box Elder County record.
Box Elder County · Utah · 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 |
|---|---|---|---|---|
| Feb 9 | Rainbow trout | yearling | 5,000 | completed |
| Sep 29 | Rainbow trout | yearling | 10,000 | completed |
When to fish Mantua Reservoir
| Major periods (~2 h) | Minor periods (~1 h) | |
|---|---|---|
| Today | 10:09 am-12:09 pm and 10:32 pm-12:32 am | 4:27-5:27 am and 4:39-5:39 pm |
| Tomorrow | 10:55 am-12:55 pm | 5:37-6:37 am and 5:02-6:02 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
- Stocked 24 days ago (Sep 29)
Computed this evening, Oct 23 · Utah fishing forecast
Gear for this water
The last plant has had time to disperse; work outward from the obvious spots.
For the trout (rainbow trout stocked 2 times here in 2026, stillwater)
| Dough bait rigs | floating dough bait 18 inches above a small egg sinker; hatchery fish know the smell |
| 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 |
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 |
|---|---|---|
| Mayor'S Pond | 3.4 mi | Oct 14 |
| Pioneer Park Pond | 4.8 mi | Jun 5 |
| Willard Creek Pond | 8.2 mi | Sep 30 |
| Wellsville Reservoir | 8.5 mi | Sep 25 |
| Hyrum Reservoir | 8.8 mi | May 12 |
Follow Box Elder County stocking: RSS / Calendar (iCal) / Print the schedule