StockedWaters
Open menu

Mantua Reservoir Fish Stocking

BOX ELDER County, Utah · 1980–2026 on record

Source: Utah DWR — Fish Stocking Report· updated 2026-02-09

According to Utah DWR — Fish Stocking Report, Mantua Reservoir was last stocked February 9, 2026 with Rainbow Trout. Mantua Reservoir has 350 stocking records on file, spanning 1980–2026, with about 2,616,011 fish stocked over that period.

February 9, 2026
Last stocked
2,616,011
Fish stocked
8
Species
350
Stocking records

When Mantua Reservoir is stocked

Mantua Reservoir is typically stocked in fall, most often in October — 99 stocking events in that peak month.

How Mantua Reservoir's stockings spread across the calendar year.

Nearby stocked waters

Other stocked waters near Mantua Reservoir, freshest activity first.

Porcupine Reservoir

10 mi

CACHE County · 8 species · 146 records

Last stocked June 2026

Cold Spring Lakes

12 mi

BOX ELDER County · 1 species · 184 records

Last stocked June 2026

Pioneer Park P

5 mi

BOX ELDER County · 10 species · 349 records

Last stocked June 2026

Wellsville Reservoir

9 mi

CACHE County · 8 species · 359 records

Last stocked June 2026

Hyrum Reservoir

9 mi

CACHE County · 12 species · 682 records

Last stocked May 2026

Mayor's Pond

3 mi

BOX ELDER County · 5 species · 182 records

Last stocked April 2026

Stocking history

Most recent stockings first. Dates shown at the precision the agency reported.

DateSpeciesNumberSizeSource
February 9, 2026Rainbow Trout5,0009.82"Utah DWR
September 30, 2025Rainbow Trout10,00010.4"Utah DWR
March 18, 2025Rainbow Trout5,0009.82"Utah DWR
October 28, 2024Rainbow Trout3,24610.17"Utah DWR
October 22, 2024Rainbow Trout1,30410.55"Utah DWR
October 18, 2024Rainbow Trout25010.55"Utah DWR
September 16, 2024Rainbow Trout2,5209.97"Utah DWR
September 12, 2024Rainbow Trout2,68812.5"Utah DWR
Show 42 more stocking records →
DateSpeciesNumberSizeSource
April 16, 2024Rainbow Trout5,00011.58"Utah DWR
October 3, 2023Rainbow Trout53110.04"Utah DWR
September 25, 2023Rainbow Trout4,02410.04"Utah DWR
September 25, 2023Rainbow Trout5,48710.04"Utah DWR
May 3, 2023Rainbow Trout5,16011.33"Utah DWR
October 4, 2022Rainbow Trout1,22510.36"Utah DWR
September 28, 2022Rainbow Trout4,58512.13"Utah DWR
September 28, 2022Rainbow Trout5,60012.13"Utah DWR
September 27, 2022Rainbow Trout1,22411.59"Utah DWR
September 27, 2022Rainbow Trout2,44911.59"Utah DWR
September 15, 2022Channel Catfish3,2803.12"Utah DWR
September 14, 2022Channel Catfish20,0083.12"Utah DWR
June 2, 2022Channel Catfish70211.7"Utah DWR
April 19, 2022Rainbow Trout5,0009.25"Utah DWR
November 9, 2021Rainbow Trout1,08011.16"Utah DWR
November 9, 2021Rainbow Trout81011.16"Utah DWR
September 27, 2021Rainbow Trout9,60410.16"Utah DWR
September 15, 2021Channel Catfish11,1604.15"Utah DWR
September 15, 2021Channel Catfish12,2053.97"Utah DWR
June 24, 2021Channel Catfish1,00013.57"Utah DWR
June 24, 2021Channel Catfish83118.42"Utah DWR
March 29, 2021Rainbow Trout5,0008.67"Utah DWR
November 25, 2020Rainbow Trout1,1728.27"Utah DWR
October 6, 2020Rainbow Trout2,1009.69"Utah DWR
October 6, 2020Rainbow Trout12,72710.23"Utah DWR
October 6, 2020Rainbow Trout2,10010.39"Utah DWR
September 30, 2020Tiger Trout1,1889.12"Utah DWR
September 17, 2020Rainbow Trout3,29510.74"Utah DWR
September 15, 2020Channel Catfish18,6012.48"Utah DWR
March 17, 2020Rainbow Trout3,2507.83"Utah DWR
March 17, 2020Rainbow Trout3,2507.83"Utah DWR
October 31, 2019Channel Catfish8,9104.35"Utah DWR
October 7, 2019Rainbow Trout15,33210.12"Utah DWR
September 30, 2019Channel Catfish2,2543.12"Utah DWR
September 11, 2019Channel Catfish17,7483.26"Utah DWR
April 4, 2019Rainbow Trout5,5038.7"Utah DWR
November 17, 2018Rainbow Trout9,26613.03"Utah DWR
October 16, 2018Channel Catfish18,9124.38"Utah DWR
October 3, 2018Rainbow Trout2,0008.48"Utah DWR
September 11, 2018Channel Catfish20,0003.59"Utah DWR
September 5, 2018Channel Catfish16129.99"Utah DWR
September 5, 2018Channel Catfish16029.99"Utah DWR

Showing 50 of 350 stocking records.

Frequently asked

When was Mantua Reservoir last stocked?

According to Utah DWR — Fish Stocking Report, Mantua Reservoir was last stocked February 9, 2026 with Rainbow Trout.

What fish species are stocked in Mantua Reservoir?

Mantua Reservoir is stocked with Rainbow Trout, Channel Catfish, Tiger Trout, Cutthroat Trout, Largemouth Bass, Fathead Minnow, Bluegill, and Utah Chub.

What time of year is Mantua Reservoir stocked?

Mantua Reservoir is typically stocked in fall, most often in October.

How often is Mantua Reservoir stocked?

Mantua Reservoir has been stocked about 7 times a year — 350 recorded stockings between 1980 and 2026.

How many fish have been stocked in Mantua Reservoir?

About 2,616,011 fish have been stocked in Mantua Reservoir across 350 recorded events since 1980, per Utah fish & wildlife agency.

What size are the fish stocked in Mantua Reservoir?

Fish stocked in Mantua Reservoir average about 8.7 inches, based on the sizes the agency reported.

Browse

How this is calculated: compiled automatically from Utah DWR — Fish Stocking Report open data — normalized, date-validated, and shown only at the precision the agency reported. Sources & methodology →

Compiled by .