Utah lakes and reservoirs

Mantua Reservoir Fishing

A Utah reservoir in Box Elder County.

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Photo: Christopher Eugene Lee, Public domain

Fishing times todaySolunar periods, sunrise and moonrise for the county around Mantua Reservoir, today and the next 7 days.Best fishing times today
Box Elder County

Before a first Utah trip to Mantua Reservoir

The UGRC outline of Mantua Reservoir in Box Elder County comes to about 515 acres of mapped outline; DWR prints no acres. Mantua is the closest town on the Census list, under a mile off.

It counts 1 launch across UGRC and DWR. DWR shows 1 shore or pier point as well. Its own rules run to 3 rule lines.

515outline acres
1launches
1shore points
8species on DWR list

Outline area from the UGRC Utah Lakes NHD layer (ArcGIS service; mapped polygon area, not a DWR surface-acre figure), read November 11, 2026.

Utah DWR Fish Utah page for Mantua Reservoir (DWR last updated the page Apr 26, 2019), read November 11, 2026.

U.S. Census Bureau, 2020 Census counts (TIGERweb) and the 2023 Gazetteer, read November 11, 2026.

DWR

DWR details for Mantua Reservoir

DWR's summary of Mantua Reservoir, quoted:

Mantua Reservoir small-sized reservoir located between Brigham City and Logan. It is a popular destination for panfish and offers trophy opportunities for bluegill.

How DWR says to reach Mantua Reservoir: From Brigham City travel east on Hwy 89 for 5 miles to the town of Mantua.

Facilities at Mantua Reservoir, per the DWR points: boat Ramp, docks – accessible, restrooms and swimming.

Utah DWR Fish Utah page for Mantua Reservoir (DWR last updated the page Apr 26, 2019), read November 11, 2026.

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Species

What Fish Utah says swims in Mantua Reservoir

DWR's likely-possible-unlikely scale for Mantua Reservoir is reproduced below.

SpeciesDWR rating
Walleyeinvasive species
Bluegilllikely
Largemouth basslikely
Rainbow troutlikely
Yellow perchlikely
Green sunfishpossible
Smallmouth basspossible

Utah DWR Fish Utah page for Mantua Reservoir (DWR last updated the page Apr 26, 2019), read November 11, 2026.

Stocking

Hatchery trucks at Mantua Reservoir lately

The newest Mantua Reservoir rows from the DWR stocking list follow; lengths appear as DWR gives them.

DateSpeciesNumberAverage length
Sep 29, 2026Rainbow10,0009.57
Feb 9, 2026Rainbow5,0009.82
Sep 30, 2025Rainbow10,00010.4
Mar 18, 2025Rainbow5,0009.82
Oct 28, 2024Rainbow3,24610.17
Oct 22, 2024Rainbow1,30410.55
Oct 18, 2024Rainbow25010.55
Sep 16, 2024Rainbow2,5209.97
Sep 12, 2024Rainbow2,68812.5
Apr 16, 2024Rainbow5,00011.58
Oct 3, 2023Rainbow53110.04
Sep 25, 2023Rainbow5,48710.04

Utah DWR Fish Utah page for Mantua Reservoir (DWR last updated the page Apr 26, 2019), read November 11, 2026.

Report

What the dated DWR report says about Mantua Reservoir

Fishing forecast (September-November): When water temperatures cool down, trout begin to head shallower in the reservoir while the warm water fish, such as largemouth bass and bluegill, head deeper. Trout: For shore anglers, try fishing trout dough bait or a worm off the bottom in shallow water. Boat anglers can do well trolling small crankbaits or pop gear and worm in depths of 10 to 15 feet.

This Mantua Reservoir report carries the date Sep 17, 2026 on the DWR page.

Utah DWR Fish Utah page for Mantua Reservoir (DWR last updated the page Apr 26, 2019), read November 11, 2026.

Access

Ramps and hand launches at Mantua Reservoir

  • Mantua Reservoir Boat Rampboat ramp, for small motorized craft, administered by a private operator in the UGRC layer, docks – accessible, restrooms, swimming

DWR shore access on Mantua Reservoir

  • Fishing Access 1 at Mantua Reservoirshore access

Alternate ramps beside Mantua Reservoir

  • Willard Bay north Boat RampWillard Bay Reservoir, 9 miles southwest
  • Hyrum State Park Boat RampHyrum Reservoir, 9 miles north
  • Willard Bay South MarinaWillard Bay Reservoir, 13 miles southwest
  • Cutler Reservoir SR-30 Boat RampCutler Reservoir, 17 miles north
  • Pineview Reservoir-North Arm Boat RampPineview Reservoir, 17 miles south

For Mantua Reservoir, the launch data name the site and agency only: no prices or opening times.

UGRC Boat Ramps layer (ArcGIS service) and the DWR Fish Utah access list, read November 11, 2026.

Limits

What a cooler from Mantua Reservoir may hold

The limits here are from the 2027 Utah Fishing Guidebook, which takes effect January 1, 2027; the 2026 Utah Fishing Guidebook stays in force through December 31, 2026 and differs only where a row says so.

The guidebook lines covering Mantua Reservoir

  • Mantua Reservoir(NEW) Limit 15 bluegill. (new in the 2027 guidebook, in force from January 1, 2027)
  • Mantua Reservoir(NEW) No limit for walleye. Anglers must not release any walleye they catch. All walleye must be immediately killed. (new in the 2027 guidebook, in force from January 1, 2027)

2027 Utah Fishing Guidebook, p. 46 (effective January 1, 2027; DWR PDF), read November 11, 2026.

Word for word, the Fish Utah rules shown for Mantua Reservoir:

  • General possession limits apply.

Utah DWR Fish Utah page for Mantua Reservoir (DWR last updated the page Apr 26, 2019), read November 11, 2026.

Default DWR limits covering Mantua Reservoir

Species group2027 daily limit2026 daily limitNote as printed
Bluegill and green sunfish (a combined total)50same–
Channel catfish8same–
Largemouth and smallmouth bass (a combined total)6same–
Trout, kokanee salmon and Arctic grayling (a combined total)4sameAnglers may not possess kokanee salmon at any waterbody statewide from Sept. 10 through Nov. 30.
Walleye10, only 1 over 24 inchessame–
Yellow perch50same–

2027 Utah Fishing Guidebook, p. 9 (effective January 1, 2027; DWR PDF), read November 11, 2026.

Fish carried home from Mantua Reservoir count under this Utah definition: "Possession limit means, for purposes of this rule only, two daily limits, including fish in a cooler, camper, tent, freezer, livewell or any other place of storage, excluding fish stored in an individual’s permanent residence."

Utah Admin. Code R657-13 (R657-13-2), last changed June 23, 2026 as printed on the DWR rules page, read November 11, 2026.

Anglers 12 and older need a Utah fishing license; both the 2026 and 2027 guidebooks print $40 for a resident 365-day adult license and $120 for a nonresident.

License prices as printed in the 2027 Utah Fishing Guidebook, p. 8 (the 2026 guidebook prints the same prices; checked against the DWR fees page), read November 11, 2026.

Tournaments

Utah tournaments scheduled on Mantua Reservoir

Schedules and winning weights for Mantua Reservoir sit on their own page.

Compare

Mantua Reservoir and nearby lakes in one table

At 10 acres, Willard Peak Pond outsizes the other nearby waters in the table.

WaterDistanceSizeCountyLaunchesSpecies on DWR list
Mantua Reservoirabout 515 acres of mapped outlineBox Elder County18
Mayors Pond3 miles west1.5 acresBox Elder County02
Pioneer Park Pond5 miles west2.5 acresBox Elder County08
Wellsville Reservoir9 miles north7 acresCache County06
Willard Peak Pond9 miles southwest10 acresBox Elder County06
Hyrum Reservoir9 miles northeastabout 432 acres of mapped outlineCache County14

DWR Fish Utah pages, UGRC Boat Ramps and Lakes NHD layers; outline sizes are GIS figures. Read November 11, 2026.

Nearby

In the same basin as Mantua Reservoir

Lakes and ponds around Mantua Reservoir

  • Mayors Pond3 miles west
  • Pioneer Park Pond5 miles west
  • Wellsville Reservoir9 miles north
  • Willard Peak Pond9 miles southwest
  • Hyrum Reservoir9 miles northeast

Tackle counters on the drive to Mantua Reservoir

  • PME Sporting Goodsbait and tackle shop, Brigham City, 6 miles
  • Willard Bay State Park North Marinamarina, Willard, 9 miles
  • Maniac Custom Luresbait and tackle shop, Brigham City, 10 miles
  • Round Rocks Fly Fishingfly shop, Logan, 16 miles
  • Rainy's Flies & Suppliesbait and tackle shop, Logan, 16 miles
  • Fish Or Starvebait and tackle shop, Logan, 17 miles

Towns a highway drive from Mantua Reservoir

  • Mantuaunder a mile
  • Brigham City6 miles
  • Perry6 miles

Mantua Reservoir on the Utah county map

  • Box Elder Countyseat: Brigham City
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Photos

Reservoirs, high lakes and wadeable creeks around Mantua Reservoir, pictured

Willard Bay Reservoir, Utah
Willard Bay Reservoir 12 mi
Photo: Shaun Fisher, CC BY 2.0
Pineview Reservoir, Utah
Pineview Reservoir 18 mi
Photo: Intermountain Forest Service, USDA Region 4 Photography, Public domain
Cache County, Utah
Cache County 17 mi
Photo: Ken Lund, CC BY-SA 2.0
Weber County, Utah
Weber County 19 mi
Photo: David Brossard, CC BY-SA 2.0
Answers

The usual head-scratchers about Mantua Reservoir

Which Utah town is closest to Mantua Reservoir?

County lines put it in Box Elder County; the nearest Census town, Mantua, is under a mile away.

What size does DWR give Mantua Reservoir?

A GIS outline of about 515 acres of mapped outline is the only size on file.

How many Utah boat ramps serve Mantua Reservoir?

Start at Mantua Reservoir Boat Ramp, one of 1 launch.

Which fish does Utah DWR list in Mantua Reservoir?

On DWR's list: bluegill, largemouth bass, rainbow trout, yellow perch and channel catfish.

What may a creel from Mantua Reservoir hold?

3 rule lines apply here; each one sits in the limits band with its edition.

Can kids fish Mantua Reservoir without a license?

Anglers 12 and older need a Utah fishing license; both the 2026 and 2027 guidebooks print $40 for a resident 365-day adult license and $120 for a nonresident. Anglers under 12 fish without one.

Does DWR map shore access at Mantua Reservoir?

1 shore or pier point are on file, Fishing Access 1 at Mantua Reservoir first.

Which shop on the Utah list serves Mantua Reservoir?

Stop at PME Sporting Goods, about 6 miles away.

On what schedule does Utah DWR plant Mantua Reservoir?

Latest of 20 stocking rows: Sep 29, 2026, rainbow.

Where are results from Mantua Reservoir events?

The event page carries every dated event found.

Mark the Free Fishing Day for Mantua Reservoir

Check the creel numbers before keeping a fish.