Fishing at Mantua Reservoir, Box Elder County, Utah

• Overview

  In Utah, Mantua Reservoir belongs to Box Elder County. The surroundings are lake country bush. Roughly 515 acres of surface: treat each bay as a water in its own right. Some 3.7 miles of bank gives room to move when the wind turns. By size it stands out even at Utah level. Some 4.3 miles away sits Brigham City, the nearest settlement. It is 52 miles to Salt Lake City, the nearest city. The boundary is close enough to be worth checking before you fish.

• Where to Fish on Mantua Reservoir

  Depth is not on record here, which means reading the ground instead. Standing timber shows when the level drops, and fish sit against it. Draw-down through summer strips the margins, so follow the water out. County-wide records name common carp, mountain sucker, green sunfish and Utah sucker. County data is a starting point rather than a guarantee. The near bank of Mantua Reservoir is often the one people ignore.

• Seasonal Patterns

  July runs about 68°F on average, January about 24°F. Expect a real winter and a strong spring after it. The lid usually sets by midwinter and gives way around late March. Ice clears near late March and comes back about early December in a typical year. Late spring and early autumn carry the year between them. Time your trip to Mantua Reservoir by conditions rather than dates.

• Tackle & Baits

  No access rule appears in what we hold. A boat ramp sits about half a mile from the water. Parking is not close: half a mile from the bank, and no nearer option is mapped. A jetty or pier is mapped about half a mile from here. Toilets are half a mile away, which matters on a long session. Bank access can be seasonal on ground like this. Some stretches are reserved and marked as such on the ground. Dry Lake at 4.7 miles is the sensible second choice. Nothing on Mantua Reservoir should be assumed from this page alone.