Nilan Reservoir Fish Stocking
Montana · 1951–2026 on record
According to Montana fish & wildlife agency, Nilan Reservoir was last stocked May 26, 2026 with Rainbow Trout. Nilan Reservoir has 224 stocking records on file, spanning 1951–2026, with about 7,090,697 fish stocked over that period.
When Nilan Reservoir is stocked
Nilan Reservoir is typically stocked in spring and summer, most often in June — 66 stocking events in that peak month.
Nearby stocked waters
Other stocked waters near Nilan Reservoir, freshest activity first.
Swazee Lake
5 mi2 species · 66 records
Last stocked May 2025
Spring Creek
6 mi6 species · 624 records
Last stocked July 2011
Pauls Lake
2 mi1 species · 1 records
Last stocked June 1977
Ford Creek
3 mi3 species · 55 records
Last stocked June 1965
Hoglund Lake
7 mi1 species · 1 records
Last stocked August 1954
Barr Creek
3 mi1 species · 8 records
Last stocked September 1952
By species
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| May 26, 2026 | Rainbow Trout | 40,000 | 3.17" | Montana fish & wildlife agency |
| June 5, 2025 | Rainbow Trout | 20,000 | 5.73" | Montana fish & wildlife agency |
| June 5, 2025 | Rainbow Trout | 20,000 | 3.39" | Montana fish & wildlife agency |
| June 19, 2024 | Rainbow Trout | 20,640 | 4.12" | Montana fish & wildlife agency |
| June 12, 2024 | Rainbow Trout | 20,000 | 5.69" | Montana fish & wildlife agency |
| June 12, 2024 | Rainbow Trout | 20,000 | 5.18" | Montana fish & wildlife agency |
| June 28, 2023 | Rainbow Trout | 42,631 | 3.49" | Montana fish & wildlife agency |
| June 27, 2023 | Rainbow Trout | 250 | 10" | Montana fish & wildlife agency |
Show 42 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| June 14, 2023 | Rainbow Trout | 21,231 | 5.54" | Montana fish & wildlife agency |
| June 14, 2023 | Rainbow Trout | 20,000 | 5.64" | Montana fish & wildlife agency |
| July 7, 2022 | Rainbow Trout | 20,000 | 3.71" | Montana fish & wildlife agency |
| May 25, 2022 | Rainbow Trout | 26,251 | 5.13" | Montana fish & wildlife agency |
| May 25, 2022 | Rainbow Trout | 24,865 | 5.11" | Montana fish & wildlife agency |
| July 1, 2021 | Rainbow Trout | 7,824 | 3.54" | Montana fish & wildlife agency |
| June 22, 2021 | Rainbow Trout | 36,968 | 3.83" | Montana fish & wildlife agency |
| June 8, 2021 | Rainbow Trout | 23,298 | 5.4" | Montana fish & wildlife agency |
| June 8, 2021 | Rainbow Trout | 15,903 | 4.94" | Montana fish & wildlife agency |
| June 18, 2020 | Rainbow Trout | 20,175 | 4.42" | Montana fish & wildlife agency |
| June 18, 2020 | Rainbow Trout | 40,000 | 3.66" | Montana fish & wildlife agency |
| June 18, 2020 | Rainbow Trout | 20,000 | 3.84" | Montana fish & wildlife agency |
| September 6, 2019 | Rainbow Trout | 9,972 | 4.12" | Montana fish & wildlife agency |
| June 18, 2019 | Rainbow Trout | 42,398 | 3.85" | Montana fish & wildlife agency |
| June 13, 2019 | Rainbow Trout | 40,000 | 4.84" | Montana fish & wildlife agency |
| September 11, 2018 | Rainbow Trout | 8,997 | 5.08" | Montana fish & wildlife agency |
| July 2, 2018 | Rainbow Trout | 7,729 | 3.75" | Montana fish & wildlife agency |
| June 14, 2018 | Rainbow Trout | 19,336 | 4.83" | Montana fish & wildlife agency |
| June 14, 2018 | Rainbow Trout | 40,000 | 3.2" | Montana fish & wildlife agency |
| June 12, 2018 | Rainbow Trout | 21,164 | 5.04" | Montana fish & wildlife agency |
| September 27, 2017 | Rainbow Trout | 29,610 | 5.34" | Montana fish & wildlife agency |
| September 21, 2017 | Rainbow Trout | 10,475 | 4.9" | Montana fish & wildlife agency |
| June 22, 2017 | Rainbow Trout | 39,016 | 3.6" | Montana fish & wildlife agency |
| June 14, 2017 | Rainbow Trout | 17,705 | 6.2" | Montana fish & wildlife agency |
| June 14, 2017 | Rainbow Trout | 12,394 | 6.2" | Montana fish & wildlife agency |
| June 13, 2017 | Rainbow Trout | 5,000 | 6.2" | Montana fish & wildlife agency |
| May 3, 2017 | Rainbow Trout | 23,997 | 2.77" | Montana fish & wildlife agency |
| September 21, 2016 | Rainbow Trout | 10,751 | 4.59" | Montana fish & wildlife agency |
| June 14, 2016 | Brown Trout | 998 | 4.34" | Montana fish & wildlife agency |
| June 14, 2016 | Rainbow Trout | 43,969 | 2.3" | Montana fish & wildlife agency |
| September 25, 2015 | Brook Trout | 5,772 | 3.5" | Montana fish & wildlife agency |
| September 24, 2015 | Rainbow Trout | 4,004 | 5.03" | Montana fish & wildlife agency |
| June 11, 2015 | Rainbow Trout | 10,262 | 5.4" | Montana fish & wildlife agency |
| June 11, 2015 | Rainbow Trout | 40,104 | 3.61" | Montana fish & wildlife agency |
| June 10, 2015 | Rainbow Trout | 29,752 | 5.25" | Montana fish & wildlife agency |
| April 27, 2015 | Rainbow Trout | 10,600 | 1.9" | Montana fish & wildlife agency |
| April 27, 2015 | Rainbow Trout | 15,200 | 2.36" | Montana fish & wildlife agency |
| October 9, 2014 | Rainbow Trout | 1,917 | 7.2" | Montana fish & wildlife agency |
| June 19, 2014 | Rainbow Trout | 44,000 | 3.8" | Montana fish & wildlife agency |
| June 17, 2014 | Rainbow Trout | 9,537 | 5.22" | Montana fish & wildlife agency |
| June 17, 2014 | Rainbow Trout | 30,924 | 5.71" | Montana fish & wildlife agency |
| May 29, 2014 | Rainbow Trout | 7,696 | 3.04" | Montana fish & wildlife agency |
Showing 50 of 224 stocking records.
Frequently asked
When was Nilan Reservoir last stocked?
According to Montana fish & wildlife agency, Nilan Reservoir was last stocked May 26, 2026 with Rainbow Trout.
What fish species are stocked in Nilan Reservoir?
Nilan Reservoir is stocked with Rainbow Trout, Brown Trout, Brook Trout, and Cutthroat Trout.
What time of year is Nilan Reservoir stocked?
Nilan Reservoir is typically stocked in spring and summer, most often in June.
How often is Nilan Reservoir stocked?
Nilan Reservoir has been stocked about 3 times a year — 224 recorded stockings between 1951 and 2026.
How many fish have been stocked in Nilan Reservoir?
About 7,090,697 fish have been stocked in Nilan Reservoir across 224 recorded events since 1951, per Montana fish & wildlife agency.
What size are the fish stocked in Nilan Reservoir?
Fish stocked in Nilan Reservoir average about 4.2 inches, based on the sizes the agency reported.