Mantua Reservoir fishing

Mantua Reservoir fishing is stocked with Rainbow Trout, Cutthroat Trout, Channel Catfish, and Tiger Trout on a reservoir. Also recorded: Bluegill, Largemouth Bass, Yellow Perch, Smallmouth Bass, Green Sunfish, and Walleye. It is stocked about 5.5 times a year since 2016, most often in September and October. Species guides list dawn and dusk for Rainbow Trout, Tiger Trout, and Largemouth Bass, dusk and night for Channel Catfish, and dawn, day, and dusk for Bluegill and Yellow Perch.

AI-generated illustration, not a photo of this lake
Last stocked
September 29, 2026
· Rainbow Trout
Plants on record
61
Since 2016
Species stocked
4 (+6 also recorded)
Average size
9.6 in
Elevation
5,154 ft

Fish at Mantua Reservoir

4 stocked · 6 confirmed present

Around the dates Mantua Reservoir is stocked, Open-Meteo's 2016-2025 archive puts mean air temperature at 62.3°F in September, 47.4°F in October, 34.5°F in March, 41.4°F in April. That is air temperature at these coordinates, not water temperature. Open-Meteo

Rainbow Trout Stocked · 42 plants · last September 29, 2026 Best: dawn, dusk

Last stocked September 29, 2026 · avg 10.3 in · 42 plants

Best: dawn, dusk

Rainbow Trout species guide
Channel Catfish Stocked · 17 plants · last September 15, 2022 Best: dusk, night

Last stocked September 15, 2022 · avg 8.3 in · 17 plants

Best: dusk, night

Channel Catfish species guide
Cutthroat Trout Stocked · 1 plant · last October 19, 2016

Last stocked October 19, 2016 · avg 2.7 in · 1 plant

Cutthroat Trout species guide
Tiger Trout Stocked · 1 plant · last September 30, 2020 Best: dawn, dusk

Last stocked September 30, 2020 · avg 9.1 in · 1 plant

Best: dawn, dusk

Tiger Trout species guide

The reservoir also allows for ice fishing during cold seasons. Brigham City Corporation owns and operates this body of water, which is also known as Brigham City Reservoir. (en.wikipedia.org, accessed September 22, 2026)(mantuautah.gov, accessed September 22, 2026)

Drafted by AI from the cited sources and checked before publishing.

How Mantua Reservoir is stocked

Source: Utah Division of Wildlife Resources.

Adams Reservoir (29.9 mi) was stocked more recently. Adams Reservoir is also stocked with Rainbow Trout and Cutthroat Trout.

Fish stocked in 2016

41,848

Fish stocked in 2017

12,331

Fish stocked in 2018

138,513

Fish stocked in 2019

49,747

Fish stocked in 2020

47,683

Fish stocked in 2021

41,690

Fish stocked in 2022

44,073

Fish stocked in 2023

15,202

Fish stocked in 2024

15,008

Fish stocked in 2025

15,000

Fish stocked in 2026

15,000

Stocking history

Source: Utah Division of Wildlife Resources.
Date Species Quantity Avg. length Source
September 29, 2026Rainbow Trout10,0009.57 inreport
February 9, 2026Rainbow Trout5,0009.82 inreport
September 30, 2025Rainbow Trout10,00010.4 inreport
March 18, 2025Rainbow Trout5,0009.82 inreport
October 28, 2024Rainbow Trout3,24610.17 inreport
October 22, 2024Rainbow Trout1,30410.55 inreport
October 18, 2024Rainbow Trout25010.55 inreport
September 16, 2024Rainbow Trout2,5209.97 inreport
September 12, 2024Rainbow Trout2,68812.5 inreport
April 16, 2024Rainbow Trout5,00011.58 inreport
October 3, 2023Rainbow Trout53110.04 inreport
September 25, 2023Rainbow Trout5,48710.04 inreport
September 25, 2023Rainbow Trout4,02410.04 inreport
May 3, 2023Rainbow Trout5,16011.33 inreport
October 4, 2022Rainbow Trout1,22510.36 inreport
September 28, 2022Rainbow Trout5,60012.13 inreport
September 28, 2022Rainbow Trout4,58512.13 inreport
September 27, 2022Rainbow Trout2,44911.59 inreport
September 27, 2022Rainbow Trout1,22411.59 inreport
September 15, 2022Channel Catfish3,2803.12 inreport
September 14, 2022Channel Catfish20,0083.12 inreport
June 2, 2022Channel Catfish70211.7 inreport
April 19, 2022Rainbow Trout5,0009.25 inreport
November 9, 2021Rainbow Trout1,08011.16 inreport
November 9, 2021Rainbow Trout81011.16 inreport
September 27, 2021Rainbow Trout9,60410.16 inreport
September 15, 2021Channel Catfish11,1604.15 inreport
September 15, 2021Channel Catfish12,2053.97 inreport
June 24, 2021Channel Catfish1,00013.57 inreport
June 24, 2021Channel Catfish83118.42 inreport
March 29, 2021Rainbow Trout5,0008.67 inreport
November 25, 2020Rainbow Trout1,1728.27 inreport
October 6, 2020Rainbow Trout2,1009.69 inreport
October 6, 2020Rainbow Trout12,72710.23 inreport
October 6, 2020Rainbow Trout2,10010.39 inreport
September 30, 2020Tiger Trout1,1889.12 inreport
September 17, 2020Rainbow Trout3,29510.74 inreport
September 15, 2020Channel Catfish18,6012.48 inreport
March 17, 2020Rainbow Trout3,2507.83 inreport
March 17, 2020Rainbow Trout3,2507.83 inreport
October 31, 2019Channel Catfish8,9104.35 inreport
October 7, 2019Rainbow Trout15,33210.12 inreport
September 30, 2019Channel Catfish2,2543.12 inreport
September 11, 2019Channel Catfish17,7483.26 inreport
April 4, 2019Rainbow Trout5,5038.7 inreport
November 17, 2018Rainbow Trout9,26613.03 inreport
October 16, 2018Channel Catfish18,9124.38 inreport
October 3, 2018Rainbow Trout2,0008.48 inreport
September 11, 2018Channel Catfish20,0003.59 inreport
September 5, 2018Channel Catfish16129.99 inreport
September 5, 2018Channel Catfish16029.99 inreport
July 10, 2018Channel Catfish44,4300.58 inreport
July 10, 2018Channel Catfish38,0860.8 inreport
March 13, 2018Rainbow Trout5,4989.18 inreport
October 16, 2017Rainbow Trout5,18712.34 inreport
October 16, 2017Rainbow Trout1,06412.34 inreport
March 28, 2017Rainbow Trout6,0808.7 inreport
October 19, 2016Cutthroat Trout19,6962.65 inreport
October 14, 2016Rainbow Trout15,06811.94 inreport
April 21, 2016Rainbow Trout3,5429.96 inreport
April 21, 2016Rainbow Trout3,5429.96 inreport

Access and facts

Water type
reservoir
Nearest town
Mantua
Shore access
Yes
Boat ramp
Yes
Facilities
camping, restrooms, dock

Mantua Reservoir is owned and operated by Brigham City Corporation, with kayaking, boating and fishing popular in summer plus hiking trails around the lake. Two campgrounds serve visitors: Mantua Waterfront RV and a Box Elder County campground. The beach has a boat ramp and restrooms.

Drafted by AI from the cited sources and checked before publishing.

View larger map · Open in Google Maps · Directions

Advisories, closures, regulations and water conditions change. Check the Utah Division of Wildlife Resources before you go.

Nearest lakes

Hyrum Reservoir 8.8 mi last stocked May 12, 2026 Willard Bay Reservoir 13.5 mi last stocked July 7, 2026 Pineview Reservoir 17.7 mi last stocked April 29, 2026 Causey Reservoir 22.9 mi last stocked July 13, 2026 Adams Reservoir 29.9 mi last stocked October 5, 2026

Public land at Mantua Reservoir

Mantua Reservoir is 0.9 miles outside the edge of Uinta-Wasatch-Cache National Forest.

Boundaries from Public Lands DB, part of the same network.

Common questions

What fish are at Mantua Reservoir?

Fishing Mantua Reservoir usually means Rainbow Trout: Rainbow Trout accounts for 42 of 61 plants on record, ahead of Channel Catfish and 2 more. Rainbow Trout was last stocked September 29, 2026, averaging 10.3 in. Channel Catfish was last stocked September 15, 2022, averaging 8.3 in. Cutthroat Trout was last stocked October 19, 2016, averaging 2.7 in. Tiger Trout was last stocked September 30, 2020, averaging 9.1 in. Bluegill, Largemouth Bass, Yellow Perch, and Smallmouth Bass, plus 2 more are recorded here outside the stocking reports.

When is Mantua Reservoir stocked?

Last stocked September 29, 2026. It is stocked about 5.5 times a year since 2016, most often in September and October.

How big are the fish stocked at Mantua Reservoir?

Stocked fish average 9.6 in. Rainbow Trout average 10.3 in. Channel Catfish average 8.3 in. Cutthroat Trout average 2.7 in. Tiger Trout average 9.1 in.

How do you get on Mantua Reservoir?

Shore fishing is available and there is a boat ramp. The nearest town is Mantua. Facilities include camping, restrooms, and dock. Mantua Reservoir is owned and operated by Brigham City Corporation, with kayaking, boating and fishing popular in summer plus hiking trails around the lake. Two campgrounds serve visitors: Mantua Waterfront RV and a Box Elder County campground. The beach has a boat ramp and restrooms.

Which lakes near Mantua Reservoir were stocked more recently?

Adams Reservoir (29.9 mi) was stocked more recently. Adams Reservoir is also stocked with Rainbow Trout and Cutthroat Trout.

Sources (3) +