Last updated: June 29, 2026. Verify current DWR stocking rows, regulations, access, wind, and posted local rules before keeping fish or choosing a launch.
Stocking context checked June 29, 2026: DWR's latest 2026 Mantua Reservoir row shows 5,000 rainbow trout averaging 9.82 inches stocked February 9, 2026. Treat that as February stocking context, not a fresh current-bite report, and check the Utah fish stocking report for newer rows before you go.
Mantua is a compact northern Utah reservoir where family shore plans, kayak or nonmotorized outings, small-boat checks, and warmwater tactics can all make sense. Rainbow trout are supported by DWR stocking context, while largemouth bass, bluegill, and yellow perch are useful seasonal planning targets.
The 2026 Utah Fishing Guidebook did not show a Mantua-specific special-water entry in the checked specific-waters section, so start with statewide limits unless DWR or local posted rules say otherwise. The guidebook allows dead yellow perch as bait at Mantua where bait is otherwise permitted.
Verify DWR Fish Utah before assuming any tiger muskie opportunity. Winter or ice-fishing plans require current ice-thickness and access checks.
Official DWR stocking source: 2026 Utah fish stocking table. Regulations source: Utah Fishing Guidebook.