Dudley Slough Fish Stocking
Montana · 1931–1960 on record
According to Montana fish & wildlife agency, Dudley Slough was last stocked July 29, 1960 with Rainbow Trout. Dudley Slough has 17 stocking records on file, spanning 1931–1960, with about 830,743 fish stocked over that period.
When Dudley Slough is stocked
Dudley Slough is typically stocked in summer, most often in July — 8 stocking events in that peak month.
Nearby stocked waters
Other stocked waters near Dudley Slough, freshest activity first.
Dickey Lake
9 mi7 species · 174 records
Last stocked May 2026
Louis Lake
7 mi2 species · 32 records
Last stocked August 2024
Murphy Lake
3 mi5 species · 43 records
Last stocked August 2024
Sunday Lake 1
9 mi2 species · 18 records
Last stocked August 2024
Brimstone Lake
5 mi2 species · 28 records
Last stocked July 2023
Frank Lake
7 mi4 species · 145 records
Last stocked May 2023
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| July 29, 1960 | Rainbow Trout | 9,007 | 0 | Montana fish & wildlife agency |
| July 29, 1960 | Rainbow Trout | 9,007 | 0 | Montana fish & wildlife agency |
| July 28, 1960 | Rainbow Trout | 9,234 | 0 | Montana fish & wildlife agency |
| July 28, 1960 | Rainbow Trout | 9,234 | 0 | Montana fish & wildlife agency |
| July 22, 1960 | Rainbow Trout | 3,110 | 0 | Montana fish & wildlife agency |
| July 22, 1960 | Rainbow Trout | 3,110 | 0 | Montana fish & wildlife agency |
| July 14, 1960 | Rainbow Trout | 9,449 | 0 | Montana fish & wildlife agency |
| July 14, 1960 | Rainbow Trout | 9,449 | 0 | Montana fish & wildlife agency |
Show 9 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| May 24, 1959 | Kokanee | 103,680 | 0 | Montana fish & wildlife agency |
| May 24, 1959 | Kokanee | 103,680 | 0 | Montana fish & wildlife agency |
| May 27, 1958 | Kokanee | 100,000 | 0 | Montana fish & wildlife agency |
| May 27, 1958 | Kokanee | 100,000 | 0 | Montana fish & wildlife agency |
| June 7, 1957 | Kokanee | 70,000 | 0 | Montana fish & wildlife agency |
| June 7, 1957 | Kokanee | 70,000 | 0 | Montana fish & wildlife agency |
| May 5, 1954 | Kokanee | 100,279 | 0 | Montana fish & wildlife agency |
| April 4, 1953 | Kokanee | 101,504 | 0 | Montana fish & wildlife agency |
| May 22, 1931 | Chinook Salmon | 20,000 | 2" | Montana fish & wildlife agency |
Frequently asked
When was Dudley Slough last stocked?
According to Montana fish & wildlife agency, Dudley Slough was last stocked July 29, 1960 with Rainbow Trout.
What fish species are stocked in Dudley Slough?
Dudley Slough is stocked with Rainbow Trout, Kokanee, and Chinook Salmon.
What time of year is Dudley Slough stocked?
Dudley Slough is typically stocked in summer, most often in July.
How often is Dudley Slough stocked?
Dudley Slough is stocked intermittently — 17 recorded stockings between 1931 and 1960.
How many fish have been stocked in Dudley Slough?
About 830,743 fish have been stocked in Dudley Slough across 17 recorded events since 1931, per Montana fish & wildlife agency.
What size are the fish stocked in Dudley Slough?
Fish stocked in Dudley Slough average about 2.0 inches, based on the sizes the agency reported.