First Rock Lake Fish Stocking
Montana · 1931–1931 on record
According to Montana fish & wildlife agency, First Rock Lake was last stocked July 7, 1931 with Brook Trout. First Rock Lake has 1 stocking record on file, spanning 1931–1931, with about 20,000 fish stocked over that period.
Nearby stocked waters
Other stocked waters near First Rock Lake, freshest activity first.
Black Canyon Lake
1 mi2 species · 13 records
Last stocked August 2025
Sundance Lake
2 mi2 species · 15 records
Last stocked August 2025
Kookoo Lake
3 mi1 species · 7 records
Last stocked August 2025
Triangle Lake
4 mi1 species · 22 records
Last stocked August 2025
Silt Lake, Upper
3 mi1 species · 5 records
Last stocked July 2024
Dude Lake
4 mi2 species · 11 records
Last stocked August 2023
By species
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| July 7, 1931 | Brook Trout | 20,000 | 2" | Montana fish & wildlife agency |
Frequently asked
When was First Rock Lake last stocked?
According to Montana fish & wildlife agency, First Rock Lake was last stocked July 7, 1931 with Brook Trout.
What fish species are stocked in First Rock Lake?
First Rock Lake is stocked with Brook Trout.
How often is First Rock Lake stocked?
First Rock Lake is stocked intermittently — 1 recorded stockings between 1931 and 1931.
How many fish have been stocked in First Rock Lake?
About 20,000 fish have been stocked in First Rock Lake across 1 recorded events since 1931, per Montana fish & wildlife agency.
What size are the fish stocked in First Rock Lake?
Fish stocked in First Rock Lake average about 2.0 inches, based on the sizes the agency reported.