Mantua Reservoir

Boat Ramps: 1
Access Points: 1
Species: 6

Nestled in the picturesque landscape of northern Utah, Mantua Reservoir is a beloved fishing destination spanning approximately 500 acres. Located in Box Elder Canyon, just east of Brigham City along Highway 89, this serene water body offers anglers a diverse fishing experience. With its calm waters and stunning mountain views, Mantua Reservoir provides ample opportunities for both novice and experienced anglers to enjoy a productive day on the water. Its relatively small size and sheltered location make it particularly appealing for family outings and those seeking a tranquil fishing experience away from the hustle and bustle of more crowded waters.

Utah licenses and regulations4 to check before you go

Species & education

Learn what type of fish are at Mantua Reservoir and what's needed to catch them.

Find which waters have the species you want to catch

Largemouth Bass

Micropterus salmoides

Rainbow Trout

Oncorhynchus mykiss

Black Bullhead

Ameiurus melas

Bluegill Sunfish

Lepomis macrochirus

Green Sunfish

Lepomis cyanellus

Yellow Perch

Perca flavescens

Fish stocking schedule

Latest 5 stockings

Rainbow Trout10,000 fish · 9.6 inSep 29, 2026
Rainbow Trout5,000 fish · 9.8 inFeb 9, 2026
Rainbow Trout10,000 fish · 10.4 inSep 30, 2025
Rainbow Trout5,000 fish · 9.8 inMar 18, 2025
Rainbow Trout3,246 fish · 10.2 inOct 28, 2024

Source

Utah Division of Wildlife Resources

Updated Nov 13, 2026. Sizes are the length the agency reports. Dates are as precise as the agency reports them.

Open stocking page

Fishing spots, boat ramps & amenities

Learn how to get on Mantua Reservoir. Uncover great fishing access points, boat ramps, and all the facilities you need for an unforgettable day on the water. Some locations shown may border or include private property. Always check property boundaries and applicable regulations before visiting. onWater's Public & Private Land layer can help you plan your access with confidence.

Mantua Reservoir Boat Ramp

Boat Ramp

Know where you can legally fish on Mantua Reservoir

See public and private land boundaries along the water, turn on private parcels with owner details to know where permission is required, and find land-trust parcels that offer permitted fishing access.

Utah licenses and regulations

Utah Boating Regulations

When using any type of watercraft to access a body of water, it is important to follow all federal, state, and local rules and regulations. These rules and regulations include boat permitting and licensing, invasive species inspections and stamps, life jacket and PFD rules, motor size and horsepower restrictions, noise limitations, restrictions on personal watercraft, and many more. Visit the web link below for the most current rules and regulations for this body of water.

Learn more

Utah Fishing License

If you’re 12 years of age or older, you must purchase a fishing license or a combination license to fish in Utah.

Learn more

Utah Fishing Regulations

This river has a variety of species and regulations, including potential floating and/or watercraft restrictions. Because this river is specially managed for species, seasons, angling methods, and watercraft, it is strongly encouraged you check all federal, state, and local regulations before fishing. Visit any of the links below, inquire locally, or contact a local fly shop to learn current regulations and restrictions.

Learn more

Utah Stream Access Laws

The law does not allow recreational water users (including anglers, kayakers, tubers, hunters and others) to walk on the private bed of a public waterbody. This means that if you are fishing or recreating in public water that flows over private property closed to trespass, you may not walk on the land beneath the water without obtaining landowner permission.

Learn more

Take Mantua Reservoir with you

The onWater Fish app keeps this water's access points, species and conditions in your pocket, with the tools you use once you're there.

Use the map without signal
Download the map around Mantua Reservoir to use it offline when coverage drops.
Log your catches here
Keep a private fishing journal for Mantua Reservoir to find where and when fish are biting for you.
HD depth charts from Garmin
Find drop offs, ledges, channels, points and shallow flats with Garmin depth charts in the app.