Koessler Lake Fish Stocking
Montana · 1965–2018 on record
According to Montana fish & wildlife agency, Koessler Lake was last stocked August 23, 2018 with Cutthroat Trout. Koessler Lake has 20 stocking records on file, spanning 1965–2018, with about 113,067 fish stocked over that period.
When Koessler Lake is stocked
Koessler Lake is typically stocked in summer, most often in August — 16 stocking events in that peak month.
Nearby stocked waters
Other stocked waters near Koessler Lake, freshest activity first.
Holland Lake
5 mi4 species · 151 records
Last stocked September 2025
Sapphire Lake
4 mi1 species · 11 records
Last stocked August 2024
Shelf Lake
3 mi1 species · 18 records
Last stocked August 2024
Clearwater Lake
3 mi2 species · 39 records
Last stocked June 2023
Upper Holland Lake
4 mi1 species · 18 records
Last stocked July 2022
Lick
2 mi1 species · 6 records
Last stocked October 2021
By species
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| August 23, 2018 | Cutthroat Trout | 1,400 | 2" | Montana fish & wildlife agency |
| August 23, 2018 | Cutthroat Trout | 4,004 | 2" | Montana fish & wildlife agency |
| August 12, 2017 | Cutthroat Trout | 4,984 | 2" | Montana fish & wildlife agency |
| August 12, 2017 | Cutthroat Trout | 1,760 | 2" | Montana fish & wildlife agency |
| August 12, 2017 | Cutthroat Trout | 713 | 2" | Montana fish & wildlife agency |
| August 12, 2017 | Cutthroat Trout | 1,287 | 1" | Montana fish & wildlife agency |
| August 24, 2016 | Cutthroat Trout | 8,700 | 2.01" | Montana fish & wildlife agency |
| October 6, 2015 | Cutthroat Trout | 8,700 | 2.4" | Montana fish & wildlife agency |
Show 12 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| July 26, 2000 | Cutthroat Trout | 10,000 | 1.2" | Montana fish & wildlife agency |
| August 11, 1999 | Cutthroat Trout | 10,368 | 1.5" | Montana fish & wildlife agency |
| August 5, 1998 | Cutthroat Trout | 11,042 | 1.4" | Montana fish & wildlife agency |
| July 31, 1997 | Cutthroat Trout | 10,064 | 1.2" | Montana fish & wildlife agency |
| August 22, 1994 | Cutthroat Trout | 5,000 | 1" | Montana fish & wildlife agency |
| August 12, 1993 | Cutthroat Trout | 5,000 | 1.2" | Montana fish & wildlife agency |
| August 4, 1992 | Cutthroat Trout | 5,000 | 0.8" | Montana fish & wildlife agency |
| August 23, 1991 | Cutthroat Trout | 5,000 | 1.1" | Montana fish & wildlife agency |
| August 22, 1990 | Cutthroat Trout | 5,120 | 1.3" | Montana fish & wildlife agency |
| August 16, 1989 | Cutthroat Trout | 4,950 | 1.3" | Montana fish & wildlife agency |
| August 24, 1988 | Cutthroat Trout | 4,775 | 1.4" | Montana fish & wildlife agency |
| September 1, 1965 | Cutthroat Trout | 5,200 | 1" | Montana fish & wildlife agency |
Frequently asked
When was Koessler Lake last stocked?
According to Montana fish & wildlife agency, Koessler Lake was last stocked August 23, 2018 with Cutthroat Trout.
What fish species are stocked in Koessler Lake?
Koessler Lake is stocked with Cutthroat Trout.
What time of year is Koessler Lake stocked?
Koessler Lake is typically stocked in summer, most often in August.
How often is Koessler Lake stocked?
Koessler Lake is stocked intermittently — 20 recorded stockings between 1965 and 2018.
How many fish have been stocked in Koessler Lake?
About 113,067 fish have been stocked in Koessler Lake across 20 recorded events since 1965, per Montana fish & wildlife agency.
What size are the fish stocked in Koessler Lake?
Fish stocked in Koessler Lake average about 1.5 inches, based on the sizes the agency reported.