Mantua Reservoir
Box Elder County · Northern region — Sardine Canyon panfish and bass pond.
Current conditions
Stocking
Last stocked Feb 9, 2026 — rainbow (5,000 fish).
| Date | Species | Quantity | Avg length |
|---|---|---|---|
| Feb 9, 2026 | rainbow | 5,000 | 9.82" |
| Sep 30, 2025 | rainbow | 10,000 | 10.4" |
| Mar 18, 2025 | rainbow | 5,000 | 9.82" |
| Oct 28, 2024 | rainbow | 3,246 | 10.17" |
| Oct 22, 2024 | rainbow | 1,304 | 10.55" |
| Oct 18, 2024 | rainbow | 250 | 10.55" |
| Sep 16, 2024 | rainbow | 2,520 | 9.97" |
| Sep 12, 2024 | rainbow | 2,688 | 12.5" |
Species
largemouth bassbluegillrainbow troutyellow perch
Forecast
This Afternoon
91°F
Mostly Sunny
Tonight
62°F
Mostly Clear
Thursday
95°F
Sunny
Thursday Night
65°F
Partly Cloudy
Friday
95°F
Sunny
Friday Night
64°F
Mostly Cloudy then Slight Chance Showers And Thunderstorms
24% precip
Saturday
89°F
Partly Sunny
Saturday Night
61°F
Chance Showers And Thunderstorms
34% precip