Flat Rock Lake Fish Stocking
Montana · 1968–2012 on record
According to Montana fish & wildlife agency, Flat Rock Lake was last stocked July 30, 2012 with Cutthroat Trout. Flat Rock Lake has 7 stocking records on file, spanning 1968–2012, with about 40,202 fish stocked over that period.
When Flat Rock Lake is stocked
Nearby stocked waters
Other stocked waters near Flat Rock Lake, freshest activity first.
Big Butte Lake
3 mi2 species · 7 records
Last stocked October 2025
Desolation Lake
4 mi1 species · 10 records
Last stocked October 2025
Triangle Lake
1 mi1 species · 22 records
Last stocked August 2025
Golden Lake
3 mi1 species · 7 records
Last stocked August 2025
Silt Lake, Upper
3 mi1 species · 5 records
Last stocked July 2024
Throop Lake
4 mi3 species · 6 records
Last stocked September 2022
By species
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| July 30, 2012 | Cutthroat Trout | 3,700 | 2.4" | Montana fish & wildlife agency |
| July 20, 2010 | Cutthroat Trout | 3,700 | 2.15" | Montana fish & wildlife agency |
| August 13, 2002 | Cutthroat Trout | 3,700 | 2.5" | Montana fish & wildlife agency |
| August 8, 1994 | Cutthroat Trout | 3,700 | 2.4" | Montana fish & wildlife agency |
| July 29, 1986 | Cutthroat Trout | 7,392 | 1" | Montana fish & wildlife agency |
| August 24, 1978 | Cutthroat Trout | 8,000 | 2" | Montana fish & wildlife agency |
| July 23, 1968 | Cutthroat Trout | 10,010 | 3" | Montana fish & wildlife agency |
Frequently asked
When was Flat Rock Lake last stocked?
According to Montana fish & wildlife agency, Flat Rock Lake was last stocked July 30, 2012 with Cutthroat Trout.
What fish species are stocked in Flat Rock Lake?
Flat Rock Lake is stocked with Cutthroat Trout.
How often is Flat Rock Lake stocked?
Flat Rock Lake is stocked intermittently — 7 recorded stockings between 1968 and 2012.
How many fish have been stocked in Flat Rock Lake?
About 40,202 fish have been stocked in Flat Rock Lake across 7 recorded events since 1968, per Montana fish & wildlife agency.
What size are the fish stocked in Flat Rock Lake?
Fish stocked in Flat Rock Lake average about 2.2 inches, based on the sizes the agency reported.