Lake Mary Ronan Fish Stocking
Montana · 1923–2026 on record
According to Montana fish & wildlife agency, Lake Mary Ronan was last stocked June 16, 2026 with Rainbow Trout. Lake Mary Ronan has 685 stocking records on file, spanning 1923–2026, with about 42,805,504 fish stocked over that period.
When Lake Mary Ronan is stocked
Lake Mary Ronan is typically stocked in spring, most often in May — 241 stocking events in that peak month.
Nearby stocked waters
Other stocked waters near Lake Mary Ronan, freshest activity first.
Rogers Lake
14 mi3 species · 112 records
Last stocked September 2024
Cabin Lake
12 mi2 species · 35 records
Last stocked August 2024
Horseshoe Lake
8 mi10 species · 69 records
Last stocked April 2024
Bailey Lake
11 mi2 species · 57 records
Last stocked July 2023
Flathead Lake
14 mi14 species · 1161 records
Last stocked October 1997
Sullivan Creek
10 mi2 species · 28 records
Last stocked August 1995
By species
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| June 16, 2026 | Rainbow Trout | 13,572 | 3.63" | Montana fish & wildlife agency |
| June 16, 2026 | Rainbow Trout | 13,572 | 3.63" | Montana fish & wildlife agency |
| June 23, 2025 | Rainbow Trout | 30,000 | 3.3" | Montana fish & wildlife agency |
| August 8, 2024 | Largemouth Bass | 27,522 | 1.26" | Montana fish & wildlife agency |
| June 10, 2024 | Rainbow Trout | 30,000 | 3.29" | Montana fish & wildlife agency |
| May 16, 2024 | Kokanee | 50,000 | 2.6" | Montana fish & wildlife agency |
| May 13, 2024 | Kokanee | 30,000 | 3.39" | Montana fish & wildlife agency |
| April 19, 2024 | Kokanee | 250,000 | 2.5" | Montana fish & wildlife agency |
Show 42 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| September 5, 2023 | Largemouth Bass | 13,266 | 2.59" | Montana fish & wildlife agency |
| August 17, 2023 | Largemouth Bass | 14,300 | 1.59" | Montana fish & wildlife agency |
| June 13, 2023 | Rainbow Trout | 30,139 | 3.07" | Montana fish & wildlife agency |
| May 5, 2023 | Kokanee | 310,000 | 2.5" | Montana fish & wildlife agency |
| June 15, 2022 | Rainbow Trout | 27,187 | 3.7" | Montana fish & wildlife agency |
| June 8, 2022 | Kokanee | 376,752 | 2.29" | Montana fish & wildlife agency |
| July 29, 2021 | Largemouth Bass | 25,000 | 1.68" | Montana fish & wildlife agency |
| May 27, 2021 | Rainbow Trout | 29,850 | 3.47" | Montana fish & wildlife agency |
| May 20, 2021 | Kokanee | 367,098 | 2.75" | Montana fish & wildlife agency |
| July 22, 2020 | Largemouth Bass | 25,000 | 3" | Montana fish & wildlife agency |
| June 17, 2020 | Rainbow Trout | 34,785 | 3.3" | Montana fish & wildlife agency |
| May 26, 2020 | Kokanee | 400,000 | 3" | Montana fish & wildlife agency |
| July 2, 2019 | Rainbow Trout | 30,000 | 3.22" | Montana fish & wildlife agency |
| May 30, 2019 | Kokanee | 400,000 | 2.5" | Montana fish & wildlife agency |
| July 14, 2018 | Largemouth Bass | 10,000 | 1.7" | Montana fish & wildlife agency |
| May 21, 2018 | Rainbow Trout | 30,000 | 3.59" | Montana fish & wildlife agency |
| August 23, 2017 | Largemouth Bass | 25,000 | 1.96" | Montana fish & wildlife agency |
| July 12, 2017 | Rainbow Trout | 30,218 | 3.96" | Montana fish & wildlife agency |
| June 20, 2017 | Kokanee | 22,567 | 2.2" | Montana fish & wildlife agency |
| May 30, 2017 | Kokanee | 68,890 | 2.51" | Montana fish & wildlife agency |
| May 17, 2017 | Kokanee | 160,017 | 2.21" | Montana fish & wildlife agency |
| May 10, 2017 | Kokanee | 65,513 | 2.02" | Montana fish & wildlife agency |
| May 10, 2017 | Kokanee | 62,036 | 2.12" | Montana fish & wildlife agency |
| September 16, 2016 | Rainbow Trout | 5,001 | 4.1" | Montana fish & wildlife agency |
| August 4, 2016 | Largemouth Bass | 25,000 | 1.43" | Montana fish & wildlife agency |
| July 21, 2016 | Rainbow Trout | 27,972 | 3.64" | Montana fish & wildlife agency |
| May 26, 2016 | Kokanee | 32,500 | 2.25" | Montana fish & wildlife agency |
| May 20, 2016 | Kokanee | 59,241 | 2.19" | Montana fish & wildlife agency |
| May 16, 2016 | Kokanee | 27,354 | 2.13" | Montana fish & wildlife agency |
| May 16, 2016 | Kokanee | 35,865 | 2.21" | Montana fish & wildlife agency |
| May 3, 2016 | Kokanee | 52,412 | 2.03" | Montana fish & wildlife agency |
| May 2, 2016 | Kokanee | 48,293 | 2.05" | Montana fish & wildlife agency |
| April 28, 2016 | Kokanee | 36,180 | 2" | Montana fish & wildlife agency |
| April 7, 2016 | Kokanee | 51,906 | 1.5" | Montana fish & wildlife agency |
| July 30, 2015 | Largemouth Bass | 25,000 | 1.5" | Montana fish & wildlife agency |
| June 25, 2015 | Rainbow Trout | 3,612 | 4.59" | Montana fish & wildlife agency |
| June 25, 2015 | Rainbow Trout | 1,698 | 4.45" | Montana fish & wildlife agency |
| June 25, 2015 | Rainbow Trout | 23,220 | 4.59" | Montana fish & wildlife agency |
| June 18, 2015 | Kokanee | 81,803 | 2.6" | Montana fish & wildlife agency |
| June 9, 2015 | Kokanee | 68,200 | 2.1" | Montana fish & wildlife agency |
| June 8, 2015 | Kokanee | 5,271 | 2.5" | Montana fish & wildlife agency |
| May 8, 2015 | Kokanee | 50,337 | 2.2" | Montana fish & wildlife agency |
Showing 50 of 500 stocking records.
Frequently asked
When was Lake Mary Ronan last stocked?
According to Montana fish & wildlife agency, Lake Mary Ronan was last stocked June 16, 2026 with Rainbow Trout.
What fish species are stocked in Lake Mary Ronan?
Lake Mary Ronan is stocked with Rainbow Trout, Largemouth Bass, Kokanee, Cutthroat Trout, Coho Salmon, Arctic Grayling, and Brook Trout.
What time of year is Lake Mary Ronan stocked?
Lake Mary Ronan is typically stocked in spring, most often in May.
How often is Lake Mary Ronan stocked?
Lake Mary Ronan has been stocked about 7 times a year — 685 recorded stockings between 1923 and 2026.
How many fish have been stocked in Lake Mary Ronan?
About 42,805,504 fish have been stocked in Lake Mary Ronan across 685 recorded events since 1923, per Montana fish & wildlife agency.
What size are the fish stocked in Lake Mary Ronan?
Fish stocked in Lake Mary Ronan average about 3.2 inches, based on the sizes the agency reported.