Big Drop Reservoir Fish Stocking
Montana · 1966–1987 on record
According to Montana fish & wildlife agency, Big Drop Reservoir was last stocked May 6, 1987 with Rainbow Trout. Big Drop Reservoir has 19 stocking records on file, spanning 1966–1987, with about 12,600 fish stocked over that period.
When Big Drop Reservoir is stocked
Big Drop Reservoir is typically stocked in spring, most often in April — 6 stocking events in that peak month.
Nearby stocked waters
Other stocked waters near Big Drop Reservoir, freshest activity first.
Rattlesnake Reservoir
1 mi3 species · 8 records
Last stocked May 2025
Oil Pump Reservoir
3 mi2 species · 43 records
Last stocked May 2025
Prairie Goat Reservoir
0 mi3 species · 8 records
Last stocked April 2019
Trangmoe Reservoir
10 mi2 species · 3 records
Last stocked May 1990
Shaw Pond
13 mi2 species · 12 records
Last stocked September 1989
Juniper Dam
3 mi1 species · 1 records
Last stocked May 1987
By species
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| May 6, 1987 | Rainbow Trout | 1,000 | 3.2" | Montana fish & wildlife agency |
| April 4, 1986 | Rainbow Trout | 1,000 | 4" | Montana fish & wildlife agency |
| October 9, 1984 | Rainbow Trout | 1,600 | 4" | Montana fish & wildlife agency |
| April 18, 1983 | Rainbow Trout | 600 | 4" | Montana fish & wildlife agency |
| April 27, 1982 | Rainbow Trout | 1,000 | 3" | Montana fish & wildlife agency |
| March 26, 1981 | Rainbow Trout | 1,000 | 2" | Montana fish & wildlife agency |
| April 30, 1980 | Rainbow Trout | 600 | 2" | Montana fish & wildlife agency |
| May 22, 1979 | Rainbow Trout | 600 | 3" | Montana fish & wildlife agency |
Show 11 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| May 3, 1978 | Rainbow Trout | 600 | 2" | Montana fish & wildlife agency |
| April 15, 1976 | Rainbow Trout | 600 | 3" | Montana fish & wildlife agency |
| June 6, 1975 | Rainbow Trout | 600 | 4" | Montana fish & wildlife agency |
| June 3, 1974 | Rainbow Trout | 600 | 5" | Montana fish & wildlife agency |
| May 2, 1973 | Rainbow Trout | 400 | 2" | Montana fish & wildlife agency |
| April 18, 1972 | Rainbow Trout | 400 | 2" | Montana fish & wildlife agency |
| June 23, 1971 | Rainbow Trout | 300 | 3" | Montana fish & wildlife agency |
| June 11, 1970 | Rainbow Trout | 300 | 4" | Montana fish & wildlife agency |
| May 7, 1969 | Rainbow Trout | 400 | 3" | Montana fish & wildlife agency |
| June 21, 1967 | Rainbow Trout | 400 | 4" | Montana fish & wildlife agency |
| October 20, 1966 | Rainbow Trout | 600 | 6" | Montana fish & wildlife agency |
Frequently asked
When was Big Drop Reservoir last stocked?
According to Montana fish & wildlife agency, Big Drop Reservoir was last stocked May 6, 1987 with Rainbow Trout.
What fish species are stocked in Big Drop Reservoir?
Big Drop Reservoir is stocked with Rainbow Trout.
What time of year is Big Drop Reservoir stocked?
Big Drop Reservoir is typically stocked in spring, most often in April.
How often is Big Drop Reservoir stocked?
Big Drop Reservoir is stocked intermittently — 19 recorded stockings between 1966 and 1987.
How many fish have been stocked in Big Drop Reservoir?
About 12,600 fish have been stocked in Big Drop Reservoir across 19 recorded events since 1966, per Montana fish & wildlife agency.
What size are the fish stocked in Big Drop Reservoir?
Fish stocked in Big Drop Reservoir average about 3.3 inches, based on the sizes the agency reported.