Big Casino Creek Reservoir fishing

Fishing at Big Casino Creek Reservoir has Rainbow Trout, Largemouth Bass, and Tiger Muskie on the stocking report. It is stocked about 2 times a year since 2011, most often in June and July. Species guides list dawn and dusk as the active times.

Last stocked

August 7, 2025

Plants on record

30

Since 2011

Species recorded

3

Average size

7.1 in

Elevation

4,039.6 ft

How Big Casino Creek Reservoir is stocked

The first plant of the year usually falls in the third week of June. In 2025 it was July 8, 2025, later than usual.

Upper Frog Pond (1.6 mi), Hansen Reservoir (5.2 mi), Carters Pond (7.5 mi), and Upper Carters Pond (8.2 mi) were stocked more recently. Upper Frog Pond is also stocked with Rainbow Trout, Hansen Reservoir is also stocked with Rainbow Trout, Carters Pond is also stocked with Rainbow Trout, and Upper Carters Pond is also stocked with Rainbow Trout.

Fish at Big Casino Creek Reservoir

Fishing Big Casino Creek Reservoir is most likely to be for Rainbow Trout. Rainbow Trout accounts for 18 of 30 plants on record, ahead of Largemouth Bass and one more.

Around the dates Big Casino Creek Reservoir is stocked, Open-Meteo's 2016-2025 archive puts mean air temperature at 61°F in June, 69.9°F in July, 51.5°F in May, 68.3°F in August. That is air temperature at these coordinates, not water temperature. Open-Meteo

Rainbow Trout 18 plants
Plants
18 of 30
Last stocked
July 8, 2025
Average length
10.1 in

Seasons and rigs are on the Rainbow Trout guide.

Largemouth Bass 10 plants
Plants
10 of 30
Last stocked
August 7, 2025
Average length
1.6 in

Seasons and rigs are on the Largemouth Bass guide.

Tiger Muskie 2 plants
Plants
2 of 30
Last stocked
June 29, 2020
Average length
7.1 in

Seasons and rigs are on the Tiger Muskie guide.

Fish stocked per year

  • 1,7512011
  • 1,6202012
  • 1,5002013
  • 1,0002014
  • 5,0002015
  • 5,0002016
  • 5,0002017
  • 3,0002018
  • 5,0752019
  • 7,0502020
  • 6,0432021
  • 6002022
  • 6,0002023
  • 5,0002024
  • 5,5342025

Stocking history

Showing 15 of 30 plants Showing 30 plants

Source: Montana Fish, Wildlife & Parks.
Date Species Quantity Avg. length Source
August 7, 2025 Largemouth Bass 5,000 1.56 in report
July 8, 2025 Rainbow Trout 534 9.48 in report
August 9, 2024 Largemouth Bass 5,000 1.35 in report
July 22, 2023 Largemouth Bass 5,000 1.58 in report
June 16, 2023 Rainbow Trout 1,000 10 in report
June 9, 2022 Rainbow Trout 600 5.84 in report
July 21, 2021 Largemouth Bass 5,000 1.89 in report
June 17, 2021 Rainbow Trout 150 12.85 in report
June 17, 2021 Rainbow Trout 893 8.6 in report
July 13, 2020 Largemouth Bass 7,000 0.8 in report
June 29, 2020 Tiger Muskie 50 10.49 in report
July 26, 2019 Largemouth Bass 5,000 1.55 in report
June 13, 2019 Tiger Muskie 75 3.7 in report
July 19, 2018 Largemouth Bass 3,000 2.02 in report
August 8, 2017 Largemouth Bass 5,000 1.62 in report
July 28, 2016 Largemouth Bass 5,000 1.89 in report
August 3, 2015 Largemouth Bass 5,000 2 in report
June 16, 2014 Rainbow Trout 500 8.74 in report
May 2, 2014 Rainbow Trout 500 12.3 in report
September 18, 2013 Rainbow Trout 500 12.13 in report
May 30, 2013 Rainbow Trout 250 9.47 in report
May 30, 2013 Rainbow Trout 250 12.3 in report
May 9, 2013 Rainbow Trout 500 12.64 in report
October 10, 2012 Rainbow Trout 111 11.35 in report
September 17, 2012 Rainbow Trout 501 11.1 in report
June 4, 2012 Rainbow Trout 500 7.87 in report
April 16, 2012 Rainbow Trout 508 7 in report
September 21, 2011 Rainbow Trout 253 12.46 in report
September 6, 2011 Rainbow Trout 500 8.7 in report
June 23, 2011 Rainbow Trout 998 8.37 in report
Show 15 more plants Show less

Species stocked here

Depth-by-season, top lures, and bait notes for each species stocked here are on its own species guide, linked above.

Nearest lakes