Mantua Reservoir
Utah DWR logged 2 trout stocking dates at Mantua Reservoir in 2026 so far, 15,000 fish in all. The latest was on Sep 29, 2026. Utah DWR lists it as “Mantua Res”.
Utah DWR data pulled . Latest record in the Utah DWR data for any water: Nov 4, 2026.
Mantua Reservoir in numbers
- fish stocked in 2026, through Nov 6
- 15,000
- by the same date in 2025
- 15,000
- in all of 2025
- 15,000
Every stocking record
Counts include small fish (fingerlings) as well as catchable trout; the average length tells them apart. Every trout release Utah DWR lists for this water in the last two years, newest first, then yearly totals since 2020. Average length is the figure DWR gives for each batch.
| Date | Species | Fish | Avg. length |
|---|---|---|---|
| Sep 29 | Rainbow trout10,000 fish | 10,000 | 9.57 in |
| Feb 9 | Rainbow trout5,000 fish | 5,000 | 9.82 in |
| Date | Species | Fish | Avg. length |
|---|---|---|---|
| Sep 30 | Rainbow trout10,000 fish | 10,000 | 10.4 in |
| Mar 18 | Rainbow trout5,000 fish | 5,000 | 9.82 in |
| Year | Stocking dates | Fish |
|---|---|---|
| 2026 | 2 | 15,000 |
| 2025 | 2 | 15,000 |
| 2024 | 6 | 15,008 |
| 2023 | 3 | 15,202 |
| 2022 | 4 | 20,083 |
| 2021 | 3 | 16,494 |
| 2020 | 5 | 29,082 |
Trout stocked each year
2026 is outlined because the year is not over. The tallest full year is yellow.
What is stocked here
| Species | Fish | Share |
|---|---|---|
| Rainbow trout | 124,681 | 99% |
| Tiger trout | 1,188 | 1% |
Where it is
Map point 41.5046, -111.9327: the USGS Geographic Names Information System point for this reservoir (feature 1443143). It marks the water, not a parking lot or a boat launch.
Closest waters on this site
Straight-line distance between USGS map points, not driving distance.
Also in Box Elder County: Cold Spring Lakes, Pioneer Park Pond, Mayor's Pond, Willard Creek Pond, Teal Sp, Baker Sp, Bar M Sp.
Source: DWR fish stocking report, Utah Division of Wildlife Resources. Pulled . Check the agency and the current fishing rules before you go.
Near Mantua Reservoir
Boat access, bait shops, rentals and places to stay within 10 miles. Distances are straight lines from the map point of the water, not driving distance.
Boats, kayaks and marinas
nearest 3- Skeeter's Kayak and Paddleboard Rentalscanoe and kayak rental · Mantua0.7 mi
- Willard Bay North Marinamarina · Willard8.7 mi
- Hyrum Watersport Rentalscanoe and kayak rental · Hyrum9.4 mi
Campgrounds and RV parks
nearest 3- MANTUA WATERFRONT RV RESORT & CABINScampground · Mantua0.6 mi
- Little Valley Country Storecampground · Mantua0.6 mi
- Mountain Haven Campgroundcampground · Mantua0.6 mi
Lodging
nearest 3- Bushnell Lodgemotel · Brigham City4.2 mi
- Hampton Inn Brigham Cityhotel · Brigham City4.3 mi
- Galaxie Motelmotel · Brigham City4.4 mi
Businesses: Overture Maps Foundation open places data (release 2026-10-21.0, pulled 2026-11-06), from the businesses’ public listings. We have not visited them and do not rank them. Hours and services change, so call ahead.