Flattop Lake Fish Stocking
Montana · 1947–2003 on record
According to Montana fish & wildlife agency, Flattop Lake was last stocked July 17, 2003 with Cutthroat Trout. Flattop Lake has 8 stocking records on file, spanning 1947–2003, with about 55,364 fish stocked over that period.
When Flattop Lake is stocked
Nearby stocked waters
Other stocked waters near Flattop Lake, freshest activity first.
Duck Lake
8 mi7 species · 243 records
Last stocked May 2026
Goose Lake
8 mi3 species · 84 records
Last stocked September 2008
Upper Two Medicine Lake
22 mi3 species · 115 records
Last stocked May 2007
Lower Saint Mary Lake
2 mi1 species · 1 records
Last stocked May 2006
St. Mary Lake
7 mi5 species · 51 records
Last stocked June 2004
Toad Creek
13 mi1 species · 5 records
Last stocked September 1992
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| July 17, 2003 | Cutthroat Trout | 8,096 | 3.42" | Montana fish & wildlife agency |
| August 27, 1985 | Cutthroat Trout | 4,800 | 2" | Montana fish & wildlife agency |
| September 30, 1981 | Cutthroat Trout | 4,738 | 2" | Montana fish & wildlife agency |
| August 25, 1971 | Cutthroat Trout | 5,400 | 1" | Montana fish & wildlife agency |
| July 6, 1967 | Arctic Grayling | 3,850 | 7" | Montana fish & wildlife agency |
| August 16, 1966 | Arctic Grayling | 12,000 | 2" | Montana fish & wildlife agency |
| August 27, 1948 | Cutthroat Trout | 6,080 | 2" | Montana fish & wildlife agency |
| August 29, 1947 | Cutthroat Trout | 10,400 | 2" | Montana fish & wildlife agency |
Frequently asked
When was Flattop Lake last stocked?
According to Montana fish & wildlife agency, Flattop Lake was last stocked July 17, 2003 with Cutthroat Trout.
What fish species are stocked in Flattop Lake?
Flattop Lake is stocked with Cutthroat Trout and Arctic Grayling.
How often is Flattop Lake stocked?
Flattop Lake is stocked intermittently — 8 recorded stockings between 1947 and 2003.
How many fish have been stocked in Flattop Lake?
About 55,364 fish have been stocked in Flattop Lake across 8 recorded events since 1947, per Montana fish & wildlife agency.
What size are the fish stocked in Flattop Lake?
Fish stocked in Flattop Lake average about 2.7 inches, based on the sizes the agency reported.