Hays Reservoir Fish Stocking
Montana · 1965–1982 on record
According to Montana fish & wildlife agency, Hays Reservoir was last stocked April 28, 1982 with Rainbow Trout. Hays Reservoir has 7 stocking records on file, spanning 1965–1982, with about 6,750 fish stocked over that period.
When Hays Reservoir is stocked
Nearby stocked waters
Other stocked waters near Hays Reservoir, freshest activity first.
Castle Rock Reservoir
16 mi7 species · 58 records
Last stocked June 2025
Harlin Steiger Reservoir
21 mi2 species · 7 records
Last stocked August 2023
East Fork Pond
19 mi1 species · 7 records
Last stocked August 2023
Indian Creek Reservoir
20 mi4 species · 26 records
Last stocked May 1995
Farley Pond
9 mi1 species · 1 records
Last stocked July 1983
Colstrip Pond 3
18 mi7 species · 46 records
Last stocked August 1979
By species
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| April 28, 1982 | Rainbow Trout | 1,000 | 3" | Montana fish & wildlife agency |
| May 9, 1980 | Rainbow Trout | 1,000 | 2" | Montana fish & wildlife agency |
| June 9, 1978 | Rainbow Trout | 1,000 | 3" | Montana fish & wildlife agency |
| May 17, 1976 | Rainbow Trout | 1,000 | 4" | Montana fish & wildlife agency |
| July 5, 1974 | Rainbow Trout | 1,000 | 5" | Montana fish & wildlife agency |
| April 14, 1972 | Rainbow Trout | 1,000 | 2" | Montana fish & wildlife agency |
| May 22, 1965 | Rainbow Trout | 750 | 3" | Montana fish & wildlife agency |
Frequently asked
When was Hays Reservoir last stocked?
According to Montana fish & wildlife agency, Hays Reservoir was last stocked April 28, 1982 with Rainbow Trout.
What fish species are stocked in Hays Reservoir?
Hays Reservoir is stocked with Rainbow Trout.
How often is Hays Reservoir stocked?
Hays Reservoir is stocked intermittently — 7 recorded stockings between 1965 and 1982.
How many fish have been stocked in Hays Reservoir?
About 6,750 fish have been stocked in Hays Reservoir across 7 recorded events since 1965, per Montana fish & wildlife agency.
What size are the fish stocked in Hays Reservoir?
Fish stocked in Hays Reservoir average about 3.1 inches, based on the sizes the agency reported.